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    • 专利摘要:
    Lamp provided with a light source (10), a sensor, and a control device. The sensor is arranged for sensing a position of at least one actuation element along at least two mutually transverse actuation directions. The light source is arranged for emitting light along a lighting interval. The length and/or position of the lighting interval is determined by the position of the at least one actuation element along a first one of said actuation directions. The light source is arranged for emitting light in at least two mutually different emission directions. A change in the position of the at least one actuation element along the second one of said actuation directions causes a decrease in an intensity oflight (100) generated in a first one of said emission directions (94) and an increase in an intensity of light (102) generated in a second one of said emission directions (96).
    公开号:NL1042526A
    申请号:NL1042526
    申请日:2017-09-01
    公开日:2018-03-06
    发明作者:Geert Jansen Bsc Matthijs；Leonardus Wilhelmus De Bont Msc Carolus
    申请人:Leonardus Wilhelmus De Bont Msc Carolus；Geert Jansen Bsc Matthijs；
    IPC主号:
    专利说明:

    Patent center
    The Netherlands
    © 1042526
    A PATENT APPLICATION @ Int. CL:
    H05B 37/02 (2017.01) F21S 4/28 (2017.01) (21) Application number: 1042526 © Application submitted: 01/09/2017
    (30) Priority: (71) Applicant (s): 01/09/2016 NL 1042026 Matthijs Geert Jansen BSc in Eindhoven. Carolus Leonardus Wilhelmus de Bont MSc in Eindhoven. (41) Application registered: 06/03/2018 (72) Inventor (s): (43) Application published: Matthijs Geert Jansen BSc in Eindhoven. 07/03/2018 Carolus Leonardus Wilhelmus de Bont MSc in Eindhoven. (74) Agent: No.
    © Lamp with sensor and method of operation or a lamp with sensor (57) Lamp provided with a light source (10), a sensor, and a control device. The sensor is arranged for sensing a position or at least one actuation element along at least two mutually transverse actuation directions. The light source is arranged for emitting light along a lighting interval. The length and / or position of the lighting interval is determined by the position of the least one actuation element along a first one of said actuation directions. The light source is arranged for emitting light in at least two mutually different emission directions. A change in the position of the least one actuation element along the second one of said actuation directions causes a decrease in an intensity of light (100) generated in a first one of said emission directions (94) and an increase in an intensity of light (102) generated in a second one of said emission directions (96).
    NL A 1042526
    This publication corresponds to the documents originally submitted.
    TITLE: Lamp with sensor and method or operation of a lamp with sensor
    The invention relates to a lamp provided with a light source, a sensor, and a control device that couples, e.g., by means of a wired, e.g., electrical, and / or a wireless connection, the sensor to the light source.
    The invention also relates to a method of operation or a lamp provided with a light source that extends along a light source length, a sensor, and a control device that couples, eg by means of a wired, eg electrical, and / or a wireless connection, the sensor to the light source.
    An example of a known lamp and method is described in European patent application EP 2 822 360 A2. This publication describes a lamp including a sensor and a light source that comprises an array of light emitting diodes (LEDs). The sensor is arranged for sensing the position of a hand or a user that operates the lamp. In use of the lamp, a bundle or light is generated from a sub-set of the LEDs. The lamp described in EP2 288 360 A2 is arranged for changing the width of the generated light bundle as a result of a sensed position of the hand of the user operating the lamp. However, such a change of length of the lighting interval generated by the sub-set of the LEDs based on the position of the actuating hand, only provides a limited interaction between the user of the lamp and the generated light.
    There is thus a need for a lamp that can provide an improved interaction between the user of the lamp and the generated light from a lighting interval.
    According to the invention, there is a lamp provided with a light source, a sensor, and a control device that couples the sensor to the light source, the sensor is arranged for sensing a position or at least one actuation element, eg a hand or a pointing device, operated by a user of the lamp, said position varying in time, and for generating a sensor signal based on the sensed position of the least one actuation element, in which the light source extends along a light source length and is arranged for, in response to a lighting signal received from the control device, emitting light along a lighting interval that is defined by a lighting interval position and a lighting interval length along at least a part of the light source length, with the control device is arranged for receiving the sensor signal from the sensor, for providing the lighting signal to the light source, and for forming the lighting signal based on the sensor signal so that, in use, the length and / or position of the lighting interval is determined by the position of the least one actuation element. According to a preferred aspect of the invention, the control device is further arranged for forming the lighting signal by a coupling, between the sensed position of the at least one actuation element during a sensing time period and the position and / or length of the lighting interval during a motion time period, that causes the position and / or length of the lighting interval to change proportional to the sensed position and causes a time delay, between sensing a position and causing a change in the position and / or length of the lighting interval proportional to the sensed position, increases in time during least part of the motion time period, so that, preferably, the motion time period exceeds the sensing time period.
    The varying time delay allows a change in position and / or length of the lighting interval that is gradual in time. For example, movement of the lighting interval towards a new lighting interval position with an increasing delay between sensing a new position or an actuation element, such a hand or as a user of the lamp, and the current arrival of the lighting interval at the new position , allows a gradual movement of the lighting interval. Such can improve a positive user perception or the lighting provided by the lamp. In particular, an abrupt ending of the motion of the lighting interval may be prevented. As a result of the increasing time delay, the motion time period exceeds the sensing time period. Preferably, a difference between the motion time period and the sensing time period is at least 0.1 second and / or at most 2 second. More preferably, a difference between the motion time period and the sensing time period is at least 0.2 second and / or at most 1.5 second.
    Preferably, the delay is determined by means of an algorithm that is implemented in the control device, for example in a memory and processor comprised by the control device. In use, the position and / or length of the lighting interval changes proportional to the sensed position, e.g. to one or more sensed positions. Thus, in use, a unidirectional motion of the actuation element may result in a unidirectional change of the position and / or length of the lighting interval, e.g., during part of the motion time period or during the complete motion time period. Thus, in use, the lighting interval may follow the actuation element, e.g., during part of the sensing time period or during the whole sensing time period.
    Preferably, the light source comprises an array of lighting elements, e.g., each including at least one light emitting diode. Preferably, the lighting elements are individually addressable. Preferably, the control device is arranged for, and coupled to, the light source for individually addressing the lighting elements by means of the lighting signal. Preferably, the lighting interval is formed from light generated by a sub array of lighting elements that is formed by a part of the total amount of lighting elements in the array of lighting elements.
    Preferably, the sensor is arranged for detecting the actuation element at a distance from the sensor. Optionally, the sensor and / or the control device is arranged for determining a distance between the actuation element and the sensor. Preferably, the sensor comprises an array of sensor elements, e.g., each sensor element including at least one infrared sensor or at least one ultrasonic sensor. Preferably, the sensor elements are arranged for sensing individually. Preferably, the control device is arranged for, and coupled to, the sensor for receiving the sensor signal from the lighting elements. Thus, preferably the sensor is, in particular, the sensor elements of the sensor, arranged for sensing the least one actuation element while it is at a distance from the sensor, in particular from the sensor elements. Such distance may e.g. be larger than 1 centimeter and / or narrower than 20 centimeters. Such distances may be convenient for a user of the lamp.
    The position of the lighting interval may be defined as a position of an edge of the lighting interval (a leading edge or a trailing edge) or a position of a central part of the lighting interval, eg an average position of the lighting interval such as the average of two edge positions of the lighting interval.
    In an embodiment, the control device is further arranged for forming a lighting signal that causes an intensity of the light generated along the lighting interval to a central position or the lighting interval towards an edge position or the lighting interval. Thus, in use, the intensity of the light generated along the lighting interval diminishes from the central position of the lighting interval towards the edge position of the lighting interval. Such a distribution of light intensity along the lighting interval can be further add to a positive user perception or the light provided by the lamp. This may also improve the perception of the light originating from the different lighting elements, as the light intensity gradually increases or decreases at the edges or a moving lighting interval.
    In an embodiment, the control device is arranged for varying the length of the lighting interval during the motion time period so that the length initially increases and decreased decreases. This may provide a natural experience by a user of the lamp. Preferably, the control device is arranged for initially increasing the length of the lighting interval proportional to the displacement of the lighting interval during the motion time period.
    In an embodiment, the sensor is arranged for determining a position of the least one actuation element along at least two mutually transverse actuation directions, the length and / or position of the lighting interval is determined by the position of the least one actuation element along a first one of said actuation directions, and an intensity and / or intensity distribution of the light generated along the lighting interval is determined by the position of the least one actuation element along a second one of said actuation directions. In this embodiment of the lamp, the actuation element can be used in at least two actuation directions. As a result, both the position and / or length of the lighting interval, and the intensity and / or intensity distribution of the light generated along the lighting interval can be determined. This further improves the possibilities for interaction between the user of the lamp and the generated light from the lighting interval.
    Preferably, the light source is arranged for emitting light in at least two mutually different emission directions that are transverse to the light source length, the intensity distribution is determined so that a change in the position of the least one actuation element along the second one of said actuation directions causes a decrease in an intensity of light generated along the lighting interval in a first one of said emission directions and a proportional increase in an intensity of light generated along the lighting interval in a second one of said emission directions, and , preferably, vice versa. Preferably, the decrease in light intensity in the first one of the emission directions. Preferably, said first one and said second one of the emission directions are opposite to each other. For example, in use said first one of the emission directions is upwards and said second one of the emission directions is downwards. This preferred embodiment allows a user to vary, for example, an intensity of the light that is emitted downwards without changing the total amount of light generated by the lamp. This makes the lamp especially useful for lighting a room and at the same time lighting an area below the lamp, e.g. for reading a document placed below the lamp.
    This embodiment can also be used separately from the preferred aspect of the invention described above. Thus, according to a further aspect of the invention, there is provided a lamp provided with a light source, a sensor, and a control device that couples the sensor to the light source, said the sensor is arranged for sensing a position or at least one actuation element operated by a user of the lamp along at least two mutually transverse actuation directions, said position varying in time, and for generating a sensor signal based on the sensed position of the at least one actuation element, provided the light source extends along a light source length and is arranged for, in response to a lighting signal received from the control device, emitting light along a lighting interval that is defined by a lighting interval position and a lighting interval length along at least a part of the light source length , the control device is arranged for receiving the sensor signal from the sensor, for providing the lighting signal to the light source, and for forming the lighting signal bass ed on the sensor signal so that, in use, the length and / or position of the lighting interval is determined by the position of the at least one actuation element along a first one of said actuation directions, and with an intensity and / or intensity distribution of the light generated along the lighting interval is determined by the position of the least one actuation element along a second one of said actuation directions, the light source is arranged for emitting light in at least two mutually different emission directions that are transverse to the light source length, the intensity distribution is determined so that a change in the position of the least one actuation element along the second one of said actuation directions cause a decrease in intensity or light generated along the lighting interval in a first one of said emission directions and a, preferably proportional, increase in an intensity or light generated along the lighting interval in a second one of said emission directions, and, preferably, vice versa. This embodiment may be combined with other features described. For example, the control device may be further arranged for forming the lighting signal by a coupling, between the sensed position of the at least one actuation element during a sensing time period and the position and / or length of the lighting interval during a motion time period.
    In an embodiment, the sensor extends along a sensor length that is directed along the light source length and is arranged for determining the position of the at least one actuation element along the sensor length, the control device is further arranged for forming the lighting signal by a coupling, between the sensed position of the least one actuation element during a sensing time period and the length of the lighting interval during a motion time period, that causes the position and / or length of the length of lighting to change proportional to the sensed position along the sensor length. This allows a user to naturally cause the lighting interval to move along the light source length, by moving the actuation element along the sensor length. Preferably, the distance of movement of the actuation element along the sensor length during the sensing time period, agreed with, e.g., is similar or approximately equal to, a distance of movement of the lighting interval along the light source length during the motion time period. Preferably, the sensor length and the light source length are substantially parallel to each other. Preferably, the sensor length and the light source length are similar or approximately equal to each other.
    Preferably, the sensor extends at two opposite sides of the light source. This better enables the user to actuate the lamp from both sides. This may be convenient for example when the lamp is positioned above a table.
    In an embodiment, the sensor is arranged for sensing a tilt position of the least one actuation element, while the control device is further arranged for forming the lighting signal by a coupling, between the sensed tilt position or the least one actuation element during the sensing time period and the position and / or length of the lighting interval during the motion time period, that causes the position and / or length of the lighting interval to change proportional to the sensed tilt position and causes a time delay, between sensing a tilt position and causing a change in the position and / or length of the lighting interval proportional to the sensed tilt position, that increases in time during the least part of the motion time period. Preferably, the least one actuation element is attached to and / or formed by the light source. Applying a tilt, in particular a tilt or the light source itself, may be experienced by a user to form a convenient manner to move the lighting interval.
    The invention also provides a method of operation or a lamp provided with a light source that extends along a light source length, a sensor, and a control device that couples the sensor to the light source, including the steps: sensing, by means of the sensor, a position or at least one actuation element, eg a hand or a pointing device, operated by a user of the lamp, said position varying in time; generating a sensor signal based on the sensed position of the least one actuation element; emitting, by means of the light source, in response to a lighting signal received from the control device, light along a lighting interval that is positioned at a lighting interval position along the light source length and has a lighting interval length that extends along at least a part of the light source length; and, by means of the control device, receiving the sensor signal and providing the lighting signal to the light source, and forming the lighting signal based on the sensor signal so that, in use, the length and / or position of the lighting interval is determined by the position of the least one actuation element. According to a preferred aspect of the invention, the method further comprises the steps: by means of the control device, forming the lighting signal by coupling the sensed position or the least one actuation element during a sensing time period with the position and / or length of the lighting interval during a motion time period; causing, by means of the formed lighting signal, the position and / or length of the lighting interval to change proportional to the sensed position; and causing, by means of the formed lighting signal, a time delay, between sensing a position and causing a change in the position and / or length of the lighting interval proportional to the sensed position, that increases in time during at least part of the motion time period, so that, preferably, the motion time period exceeds the sensing time period. Preferably, the lamp is a lamp according to the invention. Thus, preferably, the method according to the invention is carried out by means of a lamp according to the invention.
    The invention and its implementation will be further explained by means of the following examples referring to the following figures, saying;
    Figure 1 shows a schematic overview of a lamp in an embodiment according to a preferred aspect of the invention;
    Figure 2A shows a lamp in a further embodiment with a lighting interval at a first position;
    Figure 2B shows the lamp in the further edition with the lighting interval at a second position;
    Figure 2C shows the lamp in the further edition with the lighting interval at a third position;
    Figure 3A shows a lamp in a next edition with a lighting interval at a first position;
    Figure 3B shows the lamp in the next edition with the lighting interval at a second position;
    Figure 3C shows the lamp in the next edition with the lighting interval at a third position;
    Figures 4 A sensor or sensor in an embodiment according to the invention; and
    Figures 4B describes a light source or a lamp in the embodiment described with reference to figure 4A.
    Figure 1 shows a schematic overview of a lamp 1 provided with a light source 10. The light source extends along a light source length 12. The light source length may be straight, or alternatively may be curved or partly curved. The light source may comprise an array of lighting elements 14.1, ... 14.i, ...,
    14.N. The number of lighting elements N in the array can be at least 20 and / or at most 200. Each of the lighting elements, for example, comprises a light emitting diode. Examples of such light emitting diodes are known as such to the skilled person. For example, a mid power light emitting diode may be used such as provided by the LUXEON 3014 series from Philips. The lighting elements 14.i may be individually addressable. Thus, each of the lighting elements may be arranged for emitting light independently from the other lighting elements.
    A lighting element may include a plurality of, e.g., two, light emitting diodes that are positioned for emitting light in mutually different direction, e.g., in opposite directions. Thus, the lighting elements may be arranged for emitting light in different, e.g., opposite, directions. In a practical design, the lighting elements may each be arranged for emitting light both upwards and downwards. For example, the light source comprises two rows or, e.g., 128, light emitting diodes, such a lighting element 14. i comprises a light emitting diode from each row.
    The lamp also comprises a sensor 30. The sensor is arranged for sensing a position or at least one actuation element 32 operated by a user of the lamp 1. Thereto, the sensor may continuously, or at least repeatedly, generate a sensor ray, eg an infrared ray or an ultrasonic ray. If the ray is reflected by the actuation element, the sensor may generate a sensor signal that represents the position of the actuation element. Thus, the sensor may be arranged for generating a sensor signal based on the sensed position of the least one actuation element. Such infrared sensors or ultrasonic sensors are arranged for sensing the least one actuation element while it is at a distance from the sensor.
    In use, the position of the least one actuation element varies in time.
    The sensor may extend along a sensor length 36. The sensor 30 may be arranged for determining the varying position of the least one actuation element along the sensor length 36. The sensor may include an array of sensor elements 34.1, ... 34.j, ..., 34.M. Each sensor element may comprise an infrared sensor or an ultrasonic sensor. Examples of such sensors are known as such to the skilled person. Each sensor element 34.j may generally be arranged for generating a ray and for receiving the generated ray after is reflected from the actuation element. Thereto, each sensor element may comprise a ray-generating element and a ray-receiving element. For example, the infrared sensor TCRT5000 from Vishay may be used. Optionally, the sensor may be arranged for determining the distance between the actuation device and a sensor element from the time between generating a ray and receiving a ray by said sensor element. The number of sensor elements M in the array can for example be at least 20 and / or at most 200. For example, a row of 56 sensor elements may be provided. Preferably, the sensor elements are arranged for sensing individually. Alternatively, the sensor may be provided by a single sensor element that is arranged for sensing various positions of the actuation element.
    The lamp also comprises a control device 50. The control device 50 couples the sensor 30 to the light source 10, e.g. by means of electrical connections 52 and 54. Alternatively, wireless connections may be used. The control device 50 is arranged for receiving the sensor signal from the sensor, for providing the lighting signal to the light source, and for forming the lighting signal based on the sensor signal. Thereto, the control device 50 may be provided with a processor 56 and memory 58. The control device 50 may be arranged for, and coupled to, the sensor 30 for receiving the sensor signal from the sensor elements 34.j. The control device 50 may e.g. comprise a programmable microcontroller or the type Atmega32U4 from Atmel.
    The control device, e.g., the processor or the control device, may include driver chips for driving the lighting elements 14.i, e.g., the light emitting diodes or the lighting elements. Alternatively, such driver chips may be integral to the lighting elements. Light emitting diodes of the type WS2812 that include driver chips may e.g. be used.
    The control device may be arranged for, and coupled to, the light source for individually addressing the lighting elements 14.i by means of the lighting signal. The light source of figure 1 is arranged for, in response to a lighting signal received from the control device 50, emitting light along a lighting interval 70.
    The lighting interval may be formed by light generated from a sub array of lighting elements 14.i that is formed by a part of the total amount of lighting elements in the array of lighting elements. Thus, the lighting signal may cause that only the lighting elements that generate the lighting interval, emit light. The lighting elements that generate the lighting interval may all be neighboring, so that the lighting interval is formed from light generated by a continuous array or subsequent lighting elements. Alternatively, the lighting interval may be formed from light generated by a non-continuous array of lighting elements. Normally, the lighting interval length extends along a part of the light source length 12. The lighting interval length may alternatively extend along the whole light source length 12.
    The lighting interval 70 is defined by a lighting interval position 72 and a lighting interval length 74. The position of the lighting interval may be e.g. defined by a position or an edge of the lighting interval (e.g. a leading edge or a trailing edge). Alternatively, the position may be defined as the position of a central part of the lighting interval, e.g., an average position of the lighting interval such as the average of two edge positions of the lighting interval. The lighting signal is formed by the control device in such a way that, in use, the length 74 and / or position 72 or the lighting interval 70 is determined by the position of the least one actuation element.
    The control device may be arranged for forming a lighting signal that causes an intensity of the light generated along the lighting interval 70 to diminish from a central position 78 of the lighting interval towards an edge position 76 of the lighting interval. Thus, the light intensity generated from a lighting element 14.i that generates light at the edge position 76 of the lighting interval 70, may be less than the light intensity generated from a lighting element that generates light at the central position 78 of the lighting interval 70.
    The control device 50 may generally be arranged for negating a sensed position when it is sensed to be closer to the sensor than a lower limit distance
    042526 and / or when it is further away from the sensor than an upper limit distance. The lower limit distance may e.g. be 1 centimeter. The upper limit distance may e.g. be 20 centimeters. Such distances may be convenient for a user of the lamp. If the distance of the lamp is sensitive for the actuation element is too large, an unwanted detection or an actuation element may occur too often. If the distance of the lamp is sensitive for the actuation element is too small, it may become too difficult for a user or a lamp to have the actuation element to be detected. In particular, the actuation element may be detected only during part of a movement of the actuation element that is intended to actuate the lamp.
    During use of the lamp, a user may move the actuation element 32 unidirectionally along the sensor 30. During a sensing time period the actuation element 32 is moved, the sensor may be arranged for generating a sequence of sensed positions. The sequence of sensed position may e.g. be generated from a number of positioned sensor elements 34.j. Alternatively, the sequence of sensed position may be generated by the single sensor that is arranged for sensing various positions of the actuation element.
    A sensing time period may start at the moment an actuation element 32 is firstly detected, or a movement of the actuation element is firstly detected. A sensing time period may end when the actuation element 32 is not detected anymore, or no change in position or the actuation element 32 is detected anymore. Thus, the sensing time period may be a time period during which a movement, e.g., an unidirectional movement, or the actuation element is being detected.
    The position of the actuation element at the moment that a sensing time period starts, may be considered as position Xo. The control device 50 may be arranged for determining further sensed positions during the sensing time period relative to the initial position Xo. Thus, in use, a sequence of sensed positions may start at zero irrespective or the current position of the actuation element. The sensed positions relative to the initial position may be used as positions on the basis of which positions and / or lengths of the lighting interval are determined. Similar to determining the position of the actuation element, the new position of the lighting interval is determined relative to the initial position of the lighting interval at the start of a motion time period or the lighting interval. Thereto, the control device may be arranged for determining the initial position So the lighting interval at the start of the motion interval, and add this position to each position that is calculated on the basis of the sensed position. Thus, the lighting interval may follow the movement of the actuation element from the initial position of the lighting interval, irrespective of the initial position of the actuation element. Alternatively, or additionally, the control device may be arranged for moving the lighting interval to a position along the light source length that is representative of the initial position of the actuation element. The latter may e.g. occur as long as the actuation element remains in substantially the same position before a substantial movement or the actuation element is detected.
    The control device is arranged for forming the lighting signal by a coupling, between the sensed position (eg one or more sensed positions or a sequence of sensed positions) or the least one actuation element during a sensing time period on the one hand, and the position and / or length of the lighting interval during a motion time period on the other hand. The motion time period may be defined as the time period during which the lighting interval moves as a result of movement of the actuation element during the sensing time period. The control device may be arranged for forming the lighting signal so that, based on the sequence of sensed positions, during a motion time period, the position and / or length of the lighting interval change along the light source length proportional to the sensed position along the sensor length. The coupling provided by the control device is such that the position and / or length of the lighting interval changes proportional to the sensed position. Examples of such proportional motion are illustrated with reference to figures 2A-C and 3 A-C.
    The coupling provided by the control device is such that it causes a time delay, between sensing a position and causing a change in the position and / or length of the lighting interval proportional to the sensed position, that increases in time during at least part of the motion time period. As a result, the motion time period exceeds the sensing time period.
    For example, the coupling provided by the control device may firstly be a sensed position Xt of the actuation element at time t to a target position Yt at time t of the lighting interval. In an example, the sensor length 36 is similar to the light source length 12, the coupling may be based on the algorithm Yt = X t + C. Herein, C is a constant that, in use, is determined by the control device as a starting position of the actuation element. For example, C may be equal to the position of the lighting interval at the start of the sensing time period and / or the motion time period.
    In addition, the coupling provided by the control device may calculate the position Zt of the lighting interval as it is determined by the lighting signal, as a function of the target position Yt in combination with the previous position Zt-dt of the lighting interval based on the algorithm Zt = a * Z t- dt + b * Yt. Preferably, a is in a range between 0.8 and 0.99 and / or b is in a range between 0.01 and 0.2. Preferably, a + b = 1. Preferably, this is in a range between 0.01 and 0.02 second. Thus, preferably, the position of the lighting interval is updated at least 50 and / or at most 100 times per second. The sensed positions may be updated with a similar frequency. By having the position of the lighting interval based on both the position of the actuation element and the previous position of the lighting interval itself, a convenient delay of the lighting interval can be generally achieved. Thus, the delay as presented is not a delay that is inherent to the working of the control device, such as to the electronic connections and switches or the processor or the control device. Instead, the delay may be determined by an algorithm implemented in the control device.
    The control device may be further arranged for varying the length of the lighting interval during the motion time period. This may e.g. be achieved by applying the algorithm described above simultaneously to each edge position or the lighting interval. The delay applied to a leading edge of the lighting interval may e.g. be different from the delay applied to a trailing edge of the lighting interval. Thus, the parameter a and b or the trailing edge may be different to the parameters a and b or the leading edge. For example, initially, during a motion time period, the delay or the leading edge may be narrower than the delay or the trailing edge. As a result, the length of the lighting interval initially increases proportionality to the displacement of the lighting interval during the motion time period. Thus, in use, the length of the lighting interval may initially increase and subsequently decrease to its approximate value at the start of the motion time period. As a result, without intending to be bound by a comparison, however, the lighting interval may be experienced by a user to resemble an elastic behavior.
    This may be appealing to a user of the lamp.
    Figures 2A-C show a further embodiment of the lamp 1. Like in other variants, the lamp 10 may comprises a housing 18. The housing 18 may accommodate the light source 10, the sensor 30, and the control device 50. The lamp 1 may further comprise a diffuser 20, that substantially surrounds the light source 10 and extends along the light source length. A diffuser may e.g. be applied when the light source comprises 10 various individual lighting elements 14.i. Although not necessary, a diffuser may be generally applied in the described described. The diffuser may comprise an open area (not drawn) that extends along the light source length 12. Such an open area may allow air to flow along the light source. Such may be beneficial for cooling the light source. Optionally, the diffuser comprises two parts that extend along the light source and each substantially cover up to half or a perimeter of the light source. Thus, both parts together may form a tube with two open areas in between the parts that extend along the light source length.
    042526
    The lamp 1 comprises a sensor 30 and a control device (not drawn in figures 2 AC) as described with reference to figure 1. In the embodiment of figures 2A-C, the sensor extends along a sensor length 36. The sensor length may be directed along the light source length 12. Thus, the sensor length 36 may be substantially parallel to the light source length 12. As indicated in figures 2A-C, the sensor may extend at two opposing sides of the light source 10. The sensor may eg extend along two separate lines, which may be substantially parallel to each other. The sensor may for example comprise two arrays of sensor elements 34.i as described with reference to figure 1, which extend along the light source 10 at opposite sides of the light source.
    In the embodiment of figures 2A-C, the sensor 30 is arranged for determining the position of the least one actuation element along the sensor length 36. Such determining may be performed by means of a part of the sensor (eg by a sensor element thereof) at one side of the light source, or by means of a part of the sensor (eg by a sensor element) at the other side of the light source 10. Which part of the sensor, and / or which sensor element, rated the position of the actuating element, may eg be dependent on a strength of a sensing signal received by the sensor. The control device may be arranged for determining the strength of the sensing signal of each sensor element, and determining the position of the actuation element on the basis of the strongest sensing signal.
    In figure 2A, the lighting interval is at a first position 72.1 and the actuation element is at a first actuation position 36.1 Figure 2A represents a start of both the motion time period and the sensing time period. In figure 2B, the lighting interval is at a second position 72.2 and the actuation element is at a second actuation position 36.2. Figure 2B represents a situation in which the sensing time period ends, while the motion time period is still running. In figure 2C, the lighting interval is at a third position 72.3 and the actuation element is at a third actuation position 36.3, which in this example is equal to the second actuation position. Figure 2C represents a situation regarding both the sensing time period and the motion time period have ended. The first, second, and third position of the lighting interval 70 are defined by the position of a central part of the lighting interval 70 along the light source length 12.
    Motion of the actuation element 32 during the sensing time period is indicated by arrow 80. Motion of the lighting interval 70 is indicated by arrow 82. The control device is arranged for coupling a sequence of sensed positions along the sensor length during a sensing time period , with a position (and / or length) or the lighting interval during a motion time period or the lighting interval. The coupling may be similar to the coupling in the embodiment described with reference to figure 1. The coupling causes, in use, that the position and / or length of the lighting interval changes proportional to the sensed position along the sensor length. Such a proportional coupling may generally cause that the lighting interval follows the actuation element. If the actuation element moves one way, the lighting interval may also move one way, at least for a part of the motion time period. The speed of movement may be different, or may be substantially the same during part of the motion time period. As a result of the proportional coupling the actuation element and the lighting interval may move in similar directions. An example of such unidirectional motion and motion in similar directions or both the actuation element and the lighting interval is shown in figures 2A-C.
    Figures 2A-C further show that the coupling between a sequence of sensed positions or the least one actuation element during a sensing time period, and the position of the lighting interval during a motion time period, causes a time delay between sensing a position and causing a change in the position of the lighting interval. Figure 2B shows that the position of the actuation element 32 advanced with respect to the position of the lighting interval. The delay of the positions of the lighting interval with respect to the sensed positions of the actuation element, increases in time during at least part of
    042526 the motion time period. For example, at the beginning of the motion time period the delay may be relatively small. Preferably, at the end of the motion time period the delay may be relatively large. As a result, the movement of the lighting interval gradually reaches its position at the end of the motion time period. Such gradual movement may improve a user experience or a user of the lamp. Without intending to be bound by a comparison, the movement of the lighting interval may resemble movement of an object with inertia and / or resistance. As a result of said gradual movement, the motion time period exceeds the sensing time period.
    In the example of figures 2A-C, the control device is arranged for varying the length of the lighting interval during the motion time period or the lighting interval. This may e.g. be achieved by applying different time delays for both edges or the lighting interval. In the example of figures 2A-C, the length of the lighting interval initially increases and subsequently decreases. Correspondingly, the length of the lighting interval in figure 2B is larger than in figures 2 A and 2C. In other examples, the length of the lighting interval may be substantially constant during the variation of the position of the lighting interval.
    Figures 3A-C show a next embodiment of the lamp 1. The lamp 1 comprises a sensor (not drawn in figures 3A-C) and a control device as described with reference to figure 1 (also not drawn in figures 3A-C). The sensor and control device may be positioned inside a housing of the lamp 1. In the embodiment of figures 3A-C, the sensor is arranged for sensing a tilt position or the least one actuation element. Thus, the sensor 30 may be a tilt sensor. The least one actuation element may be formed by the light source itself. Thus, in use, by tilting the light source, the sensor senses a sequence or different tilt positions. The tilt sensor may e.g. be an ADXL345 accelerometer from Analog Devices.
    The control device is arranged for forming the lighting signal so that, based on a sequence of sensed tilt positions or the light source during a sensing time period, the lighting signal is formed. In the embodiment of figures 3A-C, the lighting signal causes, during a motion time period, the position and length of the lighting interval to change along the light source length proportional to the sensed tilt position. In figure 3A, the lighting interval is at a first position 72.1 and the light source is at a first actuation position, in this example a horizontal position. Figure 3 A represents a start of both the motion time period, the lighting interval moves, and the sensing time period, being the light source being being tilted. In figure 3B, the lighting interval is at a second position 72.2 and the lighting source is a second actuation position, with tilt angle 36.2 with respect to the horizontal direction. Figure 3B represents a situation in which the sensing time period ends, while the motion time period is still running. In figure 3C, the lighting interval is at a third position 72.3 and the light source is at a third actuation position 36.3, in this example being equal to the second actuation position. Figure 3C represents a situation regarding both the sensing time period and the motion time period have ended. The first, second, and third position of the lighting interval 70 are defined by the position of a central part of the lighting interval 70 along the light source length 12.
    Tilting of actuation element 32, here formed by the light source 10, during the sensing time period is indicated by arrows 84. Motion of the lighting interval 70 is indicated by arrow 82. The control device is arranged for coupling a sequence of sensed tilt positions during a sensing time period, with a position (and / or length) or the lighting interval during a motion time period or the lighting interval. The coupling may be similar to the embodiment described with reference to figure 1. The coupling causes, in use, that the position and / or length of the lighting interval changes proportional to the sensed position along the sensor length. Such a proportional coupling may generally cause the lighting interval moves unidirectionally, while the tilting continues to increase, or alternatively continues to decrease. The speed of movement may change during the motion time period, or may be substantially the same during part of the
    042526 motion time period. An example of such unidirectional motion of the lighting interval and continuous tilting is shown in figures 3A-C.
    Figures 3A-C further show that the coupling between a sequence of sensed positions or the least one actuation element during a sensing time period, and the position of the lighting interval during a motion time period, causes a time delay between sensing a tilt position and causing a change in the position of the lighting interval. Figure 3B shows the position of the actuation element 32 has reached its final tilt position, while the lighting interval is still moving. The delay of the positions of the lighting interval with respect to the sensed position of the actuation element, increases in time during the least part of the motion time period. For example, at the beginning of the motion time period the delay may be relatively small. Preferably, at the end of the motion time period the delay may be relatively large. As a result, the movement of the lighting interval gradually reaches its position at the end of the motion time period. Such gradual movement may improve a user experience or a user of the lamp. Without intending to be bound by a comparison, the movement of the lighting interval may be considered to resemble movement of an object with inertia and / or resistance. As a result of said gradual movement, the motion time period exceeds the sensing time period.
    Applying a tilt, in particular a tilt of the light source 10 itself, may be experienced by a user to form a convenient manner to move the lighting interval 70. Movement of the lighting interval as a result of tilt, may be experienced as resembling movement as a result or "gravity" or the lighting interval. Without intending to be bound by a comparison, this further adds to options of attributing properties to the movement of the lighting interval that resemble movement of objects, such as resembling inertia, resistance, and / or elasticity as described before.
    Figures 4 A and 4B describe a sensor 30 and light source 10 or a lamp in an embodiment according to the invention. The lamp of figure 4A and 4B may
    042526 share one or more features of the lamp described with reference to figures 1 or 2A-C. The sensor 30 and / or light source 10 or figures 4 A and 4B can also be applied in lamps following the controller is not arranged for applying the delay described in the embodiment of figures 1 and 2A-c, ie the delay between sensing a position and causing a change in the position and / or length of the lighting interval proportional to the sensed position, said delay increasing in time during the least part of the motion time period.
    The structure of the sensor 30 in the embodiment of figure 4 A may be similar to the structure of the sensor in the embodiment of figure 1. E.g., the sensor 30 may include a plurality of the individual sensor elements 34.j. The sensor 30 or figure 4 A is arranged for determining a position of the least one actuation element 32 along two mutually transverse actuation directions 90.92. The length and / or position of the lighting interval may be determined by the position of the least one actuation element along a first one 90 or said actuation directions. Like in the embodiment of figure 1, the first one 90 of the actuation direction may be directed along the sensor length 36. Moreover, an intensity and / or intensity distribution of the light generated along the lighting interval may be determined by the position of the at least one actuation element along the second one 92 or said actuation directions. Thus, in use, the sensor 30 generates a sensor signal that represents the position of the actuator element along the sensor length, and also represents the distance of the actuator element from the sensor 30 in a direction transverse to the sensor length.
    The sensor 30 of figure 4 May be advantageously used in a lamp provided with a light source according to figure 4B and provided with a control device that electrically couples the sensor to the light source. The light source is arranged for emitting light in at least two mutually different emission directions 94, 96 that are transverse to the light source length. The first emission direction 94 may e.g. be downwards. The second emission direction 96 may e.g. be upwards. This may e.g. be enabled by providing each lighting element with two light emitting diodes that are positioned for emitting light in said directions 94,
    96. In another embodiment, both directions may e.g. be sidewards, e.g. be directed in mutually opposite sideward directions.
    The control device may be arranged for determining the intensity distribution so that a change in the position of the least one actuation element along the second one 92 of said actuation directions causes a decrease in an intensity of light 100 generated along the lighting interval in the first one 94 of said emission directions. Preferably, said change in position or the least one actuation element causes an increase in an intensity of light 102 generated along the lighting interval in the second one 96 of said emission directions. Preferably, the increase in intensity in the second emission direction 96 is proportional to the decrease in intensity in the first emission direction 94.
    The exponent of the lamp disclosed with reference to figures 1, 2AC, and 3A-C may be used in an embodiment of a method or operation of a lamp 1, provided with the light source 30 that extends along a light source length 12. Said lamp also comprises a sensor 30 and a control device 50 that electrically couples the sensor 30 to the light source 10. The method may also be used during operation of variations of the lamp described with reference to figures 4A and 4B. However, some of the steps of operation may, optionally, not be enabled by means of the latter lamp.
    The method may include the step of sensing, by means of the sensor 30, a position or at least one actuation element 32 operated by a user of the lamp, said position varying in time. Subsequently, the method may include the step of generating a sensor signal based on the sensed position of the least one actuation element 32. It may further include the step of emitting, by means of the light source 10, in response to a lighting signal received from the control device 50, light along a lighting interval 70 that is positioned at a lighting interval position 72 along the light source length 12 and has a lighting interval length 74 that extends along at least a part of the light source length 12. In said method, by means of the control device 50, the sensor signal may be received and the lighting signal may be provided to the light source. The method may further comprise the step of forming the lighting signal based on the sensor signal so that, in use, the length and / or position of the lighting interval 70 is determined by the position of the least one actuation element 32. Thus, the movement of the lighting interval 70 may generally follow the movement of the actuation element.
    In this embodiment, the method may further comprise the step of, by means of the control device 50, forming the lighting signal by coupling the sensed position or the least one actuation element during a sensing time period, with the position and / or length or the lighting interval during a motion time period. The lighting signal may be formed from the sensor signal based on an algorithm as described with respect to the embodiment of figure 1. The lighting signal may cause the position and / or length of the lighting interval to change proportional to the sensed position during the sensing time interval. The lighting signal may cause a time delay, between sensing a position and causing a change in the position and / or length of the lighting interval proportional to the sensed position, that increases in time during at least part of the motion time period, so that the motion time period exceeds the sensing time period. Causing such a time delay, however, optionally, in the lamp described with reference to figures 4A and 4B.
    A generally applicable method of operating a lamp provided with a light source that extends along a light source length, a sensor, and a control device that couples the sensor to the light source, as eg described with reference to figures 4A and 4B, comprises the steps of: sensing, by means of the sensor, a position or at least one actuation element, operated by a user of the lamp, along at least two mutually transverse actuation directions, said position varying in time; generating a sensor signal based on the sensed position of the least one actuation element; emitting, by means of the light source, in response to a lighting signal received from the control device, light along a lighting interval that is positioned at a lighting interval position along the light source length and has a lighting interval length that extends along at least a part of the light source length; and, by means of the control device, receiving the sensor signal and providing the lighting signal to the light source, and forming the lighting signal based on the sensor signal so that, in use, the length and / or position of the lighting interval is determined by the position of the at least one actuation element along a first one of said actuation directions; determining an intensity and / or intensity distribution of the light generated along the lighting interval based on the position of the least one actuation element along a second one of said actuation directions; and emitting, by means of the light source, light in at least two mutually different emission directions that are transverse to the light source length; and causing, based on a change in the position of the least one actuation element along the second one of said actuation directions, a decrease in an intensity of light generated along the lighting interval in a first one of said emission directions and, preferably simultaneously , a, preferably proportional, increase in an intensity of light generated along the lighting interval in a second one of said emission directions, and, preferably, vice versa.
    权利要求:
    Claims (14)
    [1]
    CONCLUSIONS
    A tamp provided with a light source, a sensor, and a control device that couples the sensor to the light source, the sensor being adapted to
    5 observing a position of at least one actuation element operated by a position which varies over time, and for generating a sensor signal based on the observed position of the at least one actuating element, wherein the light source extends along a light source length and is arranged for
    10, in response to an illumination signal received from the control device.
    emitting light along an illumination interval is defined by an illumination interval interval and an illumination interval length along at least a part of the light source length, the control device being adapted to receive the sensor signal from the sensor to provide it
    15 lighting signal at the light source, and for forming the lighting signal based on the sensor signal so used, the length and / or position of the lighting interval is determined by the position of the at least one acoustical element along a first of said actuator leads. and wherein an intensity and / or intensity distribution of the
    The light generated during the lighting interval is determined by the position of the at least one actuating element along a second of said actuating directions, wherein the light source is adapted to emit light in at least two mutually different utilities that transverse the light source length, where the intensity distribution becomes
    Determined so that a change in the position of the at least one actuating element along the second of said actuation directions causes an assumption of an intensity of light generated along the line, which is called a> n, s, nrn Itnng, ntn a turn. what a term of mouth generated along the way of a second of said oil sinks,
    [2]
    The lamp of claim L wherein the increase in the intensity of light
    5 is generated in proportion to the fall of the fall direction in the second of said radii directional lines. The decrease of the intensity of the currents which have been anticipated in the direction of the radii.
    10
    [3]
    3. A lamp as claimed in claim 1 or 2, wherein the decrease in light intensity in the first of the onion loops may be approximately the same. the increase in light intensity in the second of the nit blasting directions.
    [4]
    4. The lamp according to any of claims 1-3. wherein said first and
    15 genovnnk. t ^ eedx un the outbursts of injuries against each other.
    [5]
    5, Lamp wiifon one of eondnsle <I-L wam big in has been used, said first of the radiating directions to courts and said second of. the direction of exposure is downwards, or wherein said second of the
    20 miso'aairn tu mgn n sew forest, n, and g <named first s nn the nnstmah rehonpen is down ..
    [6]
    6, A lamp according to any one of claims I-5, adapted to enable a user to adjust an intensity of light that is being lowered
    25 hours to vary without changing the total amount of light generated by the lamp.
    [7]
    7 Lamp according to any one of claims! ~ 6, wherein the intensity distribution is determined so that a change in the position of the at least one actnatic-ek'mcut along <'ie second of genoenute aetttahcriehbngen a decrease wcoorzaekt vm • an intensity jv ikbt generated bug, the illumination interval in a first of said nip-beam directions and an increase in an intensity of light generated along the illumination interval in
    5 a second of the aforementioned exit directions, and vice versa.
    [8]
    8. A lamp according to any one of claims! the light source comprising a plurality of individual light elements provided with a plurality of light-emitting diodes which are positioned to emit light in the
    [9]
    10 first of said beam directions and the second of said beam directions, wherein the control device is arranged and coupled to a light source to individually address the light elements by means of the illuminating system.
    9. The lamp according to claim 8, wherein the light source comprises two rows of light-emitting diodes, wherein a light element comprises a light-emitting diode of each row.
    The lamp of any one of claims 1-9, wherein the control device is
    20 adapted to form a lighting signal that causes a light to be detected alongside the sechehung'umerwd from a central position of the lighting interval! to eat rundpxwitte un the sethehuogaimetwji,
    25
    [10]
    The lamp of any one of claims 1-10, wherein the sensor extends on two opposite sides of the light source,
    [11]
    12. The lamp according to claim 1, wherein the sensor extends! along a sensor length which is directed along the light source narrow and is arranged for determining a mn mowm one aetnahe element along the sensor length,
    [12]
    A lamp according to claim 12. wherein the sensor length and the light source nerve 5 are substantially parallel to each other.
    [13]
    14 «Lamp according to one. of claims L-Kh, wherein the sensor is arranged for wig toning an uhpesiue of the at least one actuatic element.
    15. The lamp of claim 14, wherein the. at least one actuator element is connected to and / or is formed by the light source.
    16. Method for operating a lamp provided with a light source that extends! a light source length, a sensor, and a control device
    [14]
    The xm ^ or with the height of the kvptx it d dm steps by detecting, by means of a sensor, a position of at least one actuating element, operated by a user of the lamp, along at least two mutually transverse directions of actuation , which position varies over time;
    generating a sensor signal based on the sensed position of the at least one accessory element;
    The memory signal received from the controller received light along a lighting interval positioned at a lighting interval position along the light source length and having a lighting interval length. soul stretches along
    25 at least a part of the light source length:
    by means of the Rpeelinohnm., the reheating of the heat signal and the reshaping of the illumination signal at the light source, and the. forming the lighting signal based on the sensor signal such that; in use, the length and / or position of the lighting interval is determined by the position of the at least one actuation element along a first of said activation directions; and determining an intensity and / or intensiiehsverdeHng of light along hes verHehimgsinterval Hein generated based on the poside of the at least one aetnaUe-eiemcnt along a second of said aetuutieriohllngem o x »arbn the v. eqs η v '<rder d. I am particularly concerned with the radiation, through the light source. of light in at least two different tiitstraaldehHngcn dm heats wp the Hchtb.ronie.ngte; and.
    cause a bet based on one. change in the position of the at least one activation egg layer the second of said actuation directions, of a decrease of an intensity of having generated along the heating interval in a first of said radiating lines and an increase of an intensity of vase Hein generated along of the heating interval In a second of. aforementioned nhstraairingeningen,
    1.7, A method according to claim 16, wherein the lamp is a lamp according to any of claims 1-15.
    36.1
    FIG. 2A
    72.2. 70
    FIG. 2B
    36.2 ’30 .12
    FIG. 2C .70
    36.3
    F G · 3A sa
    SA
    FIG. 4A

    34.j.
    FIG. 4B
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    NL1042026A|NL1042026B1|2016-09-01|2016-09-01|Lamp and method of operation of a lamp|
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