• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An apparatus for the optical scanning of objects in which the light from at least one light source falls on at least one light-sensitive sensor and the objects to be scanned are disposed between the light source and the sensor. The sensor comprises a large-area solar cell and an aperture mask conforming to the contours of the object to be scanned disposed between the surface of the solar cell and the object to be scanned.
    公开号:SU1367871A3
    申请号:SU813317801
    申请日:1981-08-17
    公开日:1988-01-15
    发明作者:Бек Юрген；Рериг Херберт
    申请人:Др.Мадаус Унд Ко (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to automatic control and can be used in optical devices that detect deviations from the desired structure of a wide variety of products in the process of their manufacture or packaging.
    The aim of the invention is to simplify the device for optical inspection of objects.
    Figure 1 shows a device for the optical control of objects, a section; figure 2 - block diagram of the signal processing device of the solar cell.
    The device contains a diffuse light source 1, a photodetector made in the form of a solar cell 2, in front of which there is a shadow mask 3 with a hole 4. In front of the source 1 there is a diaphragm 5 with an aperture 6. Controlled objects 7 are located on guide 8. The area of the solar cell 2 is larger areas of controlled objects 7. Elements 2 are mounted on a support plate 9, pressed by springs 10 to guide 8. Aperture 6 of diaphragm 5 corresponds to the contour of controlled objects 7.
    In order to control several objects at once, use a set of light sources 1 installed in the holder 11, and take the corresponding number of solar cells 2. The drawing also shows the housing 12.
    Instead of a diffuse light source 1 above the objects 7 to be monitored, for example, a beam of optical light guide fiber can be placed, then the presence of the diaphragm 5 is not required. Infrared sources can also be used, since solar cells still respond to this radiation.
    Figure 2 shows: diffuse light source 1, solar cell 2, amplifier 13, optical error indicator 14, machine control unit 15, voltage regulators 16-18, and main current relay 19.
    The device works as follows.
    Light from source 1 hits object 7, which was placed in place of the control using a feeder (not shown). If the object
    7, with its contour and structure, is made so that on one side it completely closes the corresponding opening 4 in the shadow mask 3 and does not transmit any radiation, then practically no light (radiation) hits the solar cells 2 located below the shadow mask 3, and amplifier 13 does not receive any signal.
    If object 7 has an error in its contour, then the light, the damaged spot on object 7, gets into
    5 to the solar cell 2, having a larger surface than the object under control 7, and the amplifier I3 receives a signal from this cell 2. The solar cell 2 also reacts when the circuit of the object 7 is not damaged, but its structure. The layers are so (broken) damaged, that a part through the object 7 of the light hits the solar cell 2. This happens when, for example, the controlled tablet, although it has its prescribed shape in the projection on the shadow mask 3, it does not have its prescribed thickness -, ev.
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    If the amplifier 13 receives a signal from one of the solar cells 2, then it issues a control signal to the error indicator 14, the monitored object 7 (tablet) is recognized. ; fect At the same time, the signal passes to block 15, which controls the production or packaging machine, and the defective object is rejected. The amplifier 13, block 15, light sources 1 are connected to a power source through voltage regulators 16-18. The amplifier 13 can be differential or executed in the form of a Schmidt trigger.
    As a light source 1, a conventional incandescent lamp or a diode emitting infrared radiation, which are so-called diffuse radiators, can be used. In their application, a (radiating) diaphragm 5 is used, which is installed above the objects 7 that are to be monitored. If they are operated with directional light or light conductor using a fiber, then the diaphragm may not be used. Fiber optic fibers have the advantage that they can easily be matched to
    contour and the number of objects to be controlled.
    By replacing shadow mask 3 and aperture 5, the device can be reconfigured to control objects with a completely different shape.
    If the proposed device is used, for example, to control tablets folded into a deep film, then the holes 4 in the shadow mask 3 above the solar cells 2 correspond exactly to the configuration of the tablets to be controlled, and below each hole of the shadow mask 3, i.e. Below each tablet, there is preferably a solar cell 2, completely covering all the openings. film with 12 tablets, in which three rows of four consecutive tablets are combined in one packaging unit, then shadow mask 3 corresponds exactly to this 12-piece packaging, i.e. respectively, the four orifices of the size of the tablets are arranged one behind the other in three rows. In this case, also 12 solar cells 2 are preferably located below the openings of the shadow mask 3. If the capsules are to be controlled directly with this device, then the tablet shadow mask 3 is replaced by a capsule shadow mask 3. It is just as easy to transfer tons of control of cones, dragee h, etc. If it is necessary to detect only defective objects, the use of solar cells and simple incandescent lamps is economically beneficial. If high resolution is needed, then only a small number of objects are grouped into one solar cell, and each
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    This solar cell has a separate amplifier. In the case of the control of tablets that have a slight transparency, it is also possible to reject those that are horizontally cracked. Therefore, limited thickness measurement is possible. In this case, diodes emitting infrared radiation are used as light sources.
    Since the area below the object to be monitored is covered over the entire surface, only one signal per object is required for complete control, while in the known devices on analogs hundreds to thousands of signals must be processed, which requires expensive electronic equipment. The proposed device has a small size and much easier.
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    权利要求:
    Claims (1)
    [1]
    25 claims
    A device for optical inspection of objects, containing both of them on the same optical axis.
    30 of the side of the guide for controlled objects, a light source and a photodetector, a diaphragm is located in front of the light source, characterized in that, in order to simplify the device, it contains a shadow mask with a hole corresponding to the contour of the objects to be monitored, arranged in front of the photodetector, which is solar an element with an area larger than the area of objects to be monitored, mounted on a support plate, pressed by springs to a guide for controlled objects, a light source
    g is made diffuse, and the aperture of the diaphragm corresponds to the contour of the controlled objects.
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    Editor A.Lezhnina
    Compiled by A.Osipova Tehred A.Kravchuk
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    类似技术:
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    同族专利:
    公开号 | 公开日
    DE3032334C2|1988-03-31|
    ES8205586A1|1982-07-01|
    FI812245L|1982-02-28|
    AU542777B2|1985-03-14|
    NL8103462A|1982-03-16|
    ZA815902B|1982-09-29|
    FI74147C|1987-12-10|
    DK154687C|1989-05-01|
    PT73561A|1981-09-01|
    NO153447C|1986-05-07|
    YU207381A|1983-10-31|
    JPS5798803A|1982-06-19|
    FR2489179B1|1986-03-28|
    IT8123377D0|1981-08-05|
    JPS6349681Y2|1988-12-21|
    ES504973A0|1982-07-01|
    KR850000340B1|1985-03-21|
    PT73561B|1982-11-05|
    CH654110A5|1986-01-31|
    IE811899L|1982-02-27|
    DK154687B|1988-12-12|
    AR230734A1|1984-06-29|
    SE457151B|1988-12-05|
    IE51705B1|1987-02-18|
    SE8105001L|1982-02-28|
    NO153447B|1985-12-16|
    US4415811A|1983-11-15|
    DK378581A|1982-02-28|
    DE3032334A1|1982-04-08|
    AU7360781A|1982-03-04|
    FR2489179A1|1982-03-05|
    BR8105486A|1982-05-11|
    NO812572L|1982-03-01|
    JPS63137810U|1988-09-12|
    KR830006713A|1983-10-06|
    GB2082768B|1985-07-03|
    GR75750B|1984-08-02|
    FI74147B|1987-08-31|
    ATA325281A|1990-09-15|
    AT392541B|1991-04-25|
    YU43034B|1989-02-28|
    GB2082768A|1982-03-10|
    NL180809C|1987-05-04|
    IT1139117B|1986-09-17|
    BE890077A|1982-02-25|
    CA1179035A|1984-12-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3437823A|1965-08-11|1969-04-08|Industrial Nucleonics Corp|Method and apparatus for detecting a given pattern in a moving web such as wire mark in paper|
    GB1225013A|1967-12-13|1971-03-17|British Insulated Callenders|Improvements in or relating to methods of and apparatus for testing electric cables|
    US3698821A|1971-08-19|1972-10-17|Burroughs Corp|Method and apparatus for inspecting plated-through printed circuit board holes|
    DE2638138C3|1976-08-25|1979-05-03|Kloeckner-Werke Ag, 4100 Duisburg|Device for recognizing and sorting out defective packs that are transported along a conveyor line|
    DE2709566A1|1977-03-04|1978-09-07|Sick Optik Elektronik Erwin|Optical item monitoring equipment in transparent packing - has light emitter and receiver in V-pattern|
    US4349278A|1980-06-09|1982-09-14|Gte Products Corporation|Comparator mask for aperture measuring apparatus|IT1201613B|1986-12-23|1989-02-02|Ima Spa|DEVICE FOR THE DETECTION AND PRESENCE OF PRODUCTS IN CORRESPONDENT HEADQUARTERS AND OF IRREGULARITIES IN THE BASIC PROFILE OF SUCH PRODUCTS ALREADY LOCATED IN THE RELATED HEADQUARTERS|
    IT1220371B|1988-05-20|1990-06-15|P M System Srl|METHOD FOR CHECKING THE SEALING OF THE WELDING OF SINGLE-DOSE VIALS OF THERMOPLASTIC MATERIAL OBTAINED CONNECTED TOGETHER IN MULTIPLE UNITS AND EQUIPMENT FOR THE IMPLEMENTATION OF THE METHOD|
    DE9114260U1|1991-11-15|1992-01-23|Hans P. Friedrich Elektronik Gmbh, 7068 Urbach, De|
    DE4243296A1|1992-12-21|1994-06-23|Sandoz Ag|Medicine pack accompanying leaflet checking device|
    US5760399A|1995-10-02|1998-06-02|Foss Nirsystems, Inc.|Measurement of transmission spectra of pharmaceutical tablets|
    US6667808B2|2000-03-08|2003-12-23|Thermo Electron Scientific Instruments Corporation|Multifunctional fourier transform infrared spectrometer system|
    AU2892602A|2000-11-10|2002-05-21|Unitive Electronics Inc|Methods of positioning components using liquid prime movers and related structures|
    US7171033B2|2001-03-28|2007-01-30|The Boeing Company|System and method for identifying defects in a composite structure|
    US7053373B1|2005-01-19|2006-05-30|Thermo Electron Scientific Instruments Llc|Infrared spectrometer with automated tablet sampling|
    ITMO20070139A1|2007-04-20|2008-10-21|Con Med S R L|OPTICAL AREA SCANNING DEVICE|
    JP2013033008A|2011-08-03|2013-02-14|Sony Corp|Optical analysis apparatus and optical analysis method|
    JP2014118200A|2012-12-18|2014-06-30|Murata Mfg Co Ltd|Electronic component storage state confirming method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3032334A|DE3032334C2|1980-08-27|1980-08-27|
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