前苏联专利SU1565356A3 Focusing and tracking unit for optical information carrier

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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:
The invention relates to an electro-optical device for recording and/or reading recording tracks in a recording surface of an optically readable disk having a plane surface (11) by means of a radiation beam, comprising a frame (43), a turntable supporting means (45) for a turntable (55) which is rotatable about an axis of rotation (57), an objective supporting means for an objective (15) having an optical axis (39), a focussing actuator (24) for moving the objective along the optical axis, guide means for moving the objective and/or the turntable relative to each other between a first position, in which they are situated nearer each other, and a second position, in which they are situated more remote from each other, and correction means for reducing, in the case of an oblique position of said surface of the disk, the angle between said optical axis and the normal to said surface at the location where the optical axis intersects the disk surface. The correction means comprise a tilting device (101) for tilting the turntable supporting means and/or objective supporting means during recording and/or reading of the recording tracks about a pivotal axis (99) which extends at least subtantially transversely of the plane defined by the optical axis and the axis of rotation and which, at least in the second position of the objective and the turntable, is situated between the axis of rotation and the optical axis.
公开号:SU1565356A3
申请号:SU864027069
申请日:1986-03-03
公开日:1990-05-15
发明作者:Адрианус Хенрикус Гейзен Вильхельмус；Эдуард Ван Росмален Гарард
申请人:Н.В.Филипс Глоэлампенфабрикен (Фирма)；
IPC主号:

专利说明:

disk. The board 91 contains the holder 92 JQ was bn in a slightly inclined
disk. In the design of the known disk players, the disk holder 92 has the ability to move vertically, which makes it possible to mount and remove the disk from the spinning cases with the carrier board fully folded.
When used in disk players of the device shown in FIG. 4, the vertical displacement of the holder 92 in the internal position of the carrier board can be significantly reduced. It is even possible to mount the holder 92 fixedly on the board 91. The pivoting frame 33 (FIG. 4) can move the spindle 31 by means of the drive 57 so far down that when the board 91 enters or leaves the device, the disk on the board 91 can be moved on spindle 31, do not touch it. In the internal position of the plate 9, the spindle 31 can simply be placed B in the desired position due to its inclination upward, whereby the disk automatically rises above the plate 91 and falls on the spindle 31.
According to FIG. 6, the device has a carrier frame 68 on which an electric motor 26 with a shaft 27 is mounted. A spindle 31 for an optical sound disk is mounted on the shaft of the electric motor 27. The spindle 31 may be provided with a tool 93 allowing the use of an optical video disk. The clamping device 94 serves to fix the audio and video disc on the spindle in the axial direction. The electric motor 26 serves both to rotate and to hold the spindle 31.
In addition, the device comprises a pivoting frame 33 and a carriage 34, which can move relative to the pivoting frame 33 and is carried by the focusing actuator 14 with lens 8. By means of the carriage 34, the lens 8 can be moved radially relative to the spindle 31, which rotates around
20
thirty
55
25
35
0
five
0
five
position relative to the pivoting frame 33 and would be pressed against the guide 97, which runs parallel to the guide 95, under the action of the siai. The leading ECNG 96 is mechanically connected to the electric motor 40 via a gear wheel C1 and Cher to 62, and the electric motor is fixed on the pivoting frame 33. This design allows the carriage 34, which is mechanically connected to the spindle 96, to move precisely between the first and second points. , moreover, in the first psoazhenie K. retx is located near the spindle, ™ on the second - closer to the extreme part 98 of the flat frame 3j.
In order to ensure the correction of the inclined position of the optical disk held by the spindle 31, the rotary frame 33 has the ability to rotate on the floor of the frame 68. For this, on opposite sides of the rotary frame 33 there are knobs 99 of the suspension, which are attached to the axle frame 33 and the supporting frame 68 using screws 100 and 101 respectively. The pod assembly 99 consists of two plates 102 and 103, between which a double hitch 104 with two rotary supports is installed. In addition, a lever 105 is mounted between the supporting frame 68 and the pivoting frame 33, which rotates in the supporting frame and has two parallel arms 106, a shaft pitch into the opening 107 on the pivoting frame 33. The lever 105 is connected to the rotary frame 33 through an axis (not shown ), which passes through the holes 107 in the arms of the lever and the holes 108 in the subframe.
Instead of the said axis, which passes through the holes 10 and 108, the ends of the lever 106 and the edges of the holes 107 can be given such a form that by connecting the two ends of the lever and the said edges of the holes, the lever 105 can be mounted
rotatable on the swing frame 33.
For tilting the pivoting frame 33, there is an actuator 57, which is fixed to the supporting frame 68 by means of a holder 86. The actuator 57 consists of an electric motor 59 with a worm 62, which is engaged with a worm gear 61 mounted in the holder 86, and a second worm is attached to it to 109. A worm to 109 is associated with a worm wheel 110 fixed to the lead screw 111. When the leading screw 111 rotates, the element 86 connected to the lever 105 moves in a vertical direction. When power is applied to the electric motor 59, the lever 105 performs rotational movements relative to the end to the axis 112, causing a tilting of the subframe.
In this embodiment of the invention, the swing frame 33, the swing arm 105, and the suspension assembly 99 form a specific unit for tilting the lens holder during the recording process and / or reproducing the tracks of the optical disc at an angle determined by the normal direction to the recording plane of the optical disc at the intersection of the optical axis with this plane. The tilt support unit, together with the carrier frame 68, constitutes a unit resembling a four-pole link. The carrier frame 68 and the swing frame 33 form the opposite sides of this link, and the lever 105, in particular the lever arm 106, and the suspension assembly, especially the double hinge 104, form the other two sides of this link. The arms of the lever 106 and the double weights 104 are arranged in pairs on opposite sides of the carriage 34 relative to each other, so that their extensions intersect and form an acute angle with each other. The advantage of this design is that when the pivoting frame 33 is tilted, it also moves, in direction to or from the spindle. This makes it possible for the mechanic device to automatically compensate for the radial displacement of the lens 8 caused by the inclination of the pivoting frame 33, thereby achieving a better relationship between the position of the lens and the track of the optical disc to be recorded or played. This saves time when using this system.

权利要求:
Claims (3)
[1]
1. Focusing and tracking unit for an optical information carrier containing a spindle with a rotation axis and a drive. an optical head with an optical axis associated with a reciprocating guide, as well as an angular movement mechanism, characterized in that, in order to improve performance parameters by reducing crosstalk between tracks, the angular movement mechanism in it is designed as a rotating frame associated with the electromechanical actuator, the axis of the rotary frame perpendicular to the plane passing through the optical axis of the optical head and the axis of rotation of the spindle, and is located between the corresponding the axles, and the spindle and / or the reciprocating movement of the optical head are connected to the rotatable frame.
[2]
2. The assembly according to claim 1, that is, in that the reciprocating movement of the optical head is connected to the rotating frame through the carriage of radial movement established
in parallel guides on the swing frame.
[3]
3. Node according to claim 1 or claim 2, characterized in that the ratio of the maximum distance from the optical axis to the axis of rotation of the respective optical head and spindle
to the distance from the axis of the rotary frame to the axis of rotation of the spindle is three.
s
g
83
FIG. five
J2
33
59
86
68
4
89
91
98
68
101

类似技术:

公开号 | 公开日 | 专利标题

SU1565356A3|1990-05-15|Focusing and tracking unit for optical information carrier

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KR100569814B1|2006-04-11|Apparatus for the recording or for the reproduction of information with a drive system for a scanning device

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JP2718064B2|1998-02-25|Optical head tilt device

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JP2699411B2|1998-01-19|Optical head tilt device

KR20010024092A|2001-03-26|Disk Reproduction Apparatus

KR960000268B1|1996-01-04|Lift and tilt apparatus of laser disk player

KR0130608B1|1998-04-17|Light disc player

JPH0760525B2|1995-06-28|Optical pickup attitude adjustment mechanism

KR970006638Y1|1997-06-27|Actuator of optical pick-up

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KR100186772B1|1999-04-15|Apparatus for fixing deck

KR200315603Y1|2003-06-09|Apparatus for setting skew of a optical disk player

KR0147123B1|1998-10-15|Object lens skew angle adjusting device of optical disk player

同族专利:

公开号 | 公开日

EP0196691A1|1986-10-08|

CA1253963A|1989-05-09|

KR940001448B1|1994-02-23|

KR860007641A|1986-10-15|

US4694442A|1987-09-15|

JPS61210531A|1986-09-18|

JPH1173665A|1999-03-16|

JP3059417B2|2000-07-04|

JPH0668846B2|1994-08-31|

NL8500592A|1986-10-01|

CN86102216A|1986-09-03|

EP0196691B1|1990-07-11|

DE3672512D1|1990-08-16|

CN1006100B|1989-12-13|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US4117521A|1976-11-04|1978-09-26|Arvin Industries, Inc.|Flexible disc recorder with skewed transducer transport|

NL7703232A|1977-03-25|1978-09-27|Philips Nv|OPTICAL SCANNER.|

US4712208A|1977-12-12|1987-12-08|Dolby Ray Milton|Disc reproducing system for compensating mechanical imperfections|

FR2474740B1|1980-01-24|1984-10-26|Thomson Csf|

JPH0142054B2|1981-06-03|1989-09-08|Matsushita Electric Ind Co Ltd|

JPS6218975B2|1981-07-16|1987-04-25|Mitsubishi Electric Corp|

NL8103960A|1981-08-26|1983-03-16|Philips Nv|SWIVEL ARM DEVICE FOR AN OPTICAL PROBE.|

JPS58170002U|1982-05-08|1983-11-12|

JPH0516647Y2|1983-04-27|1993-05-06|

JPH0313864Y2|1983-06-24|1991-03-28|

GB2156069B|1984-02-03|1987-05-07|Pioneer Electronic Corp|Apparatus for reproducing recorded information|

JPH0656667B2|1985-01-09|1994-07-27|株式会社日立製作所|Optical recording / reproducing device|NL8602564A|1986-10-13|1988-05-02|Philips Nv|ELECTRO-OPTICAL SCANNER.|

DE3733151A1|1987-09-30|1989-04-13|Mannesmann Kienzle Gmbh|RECORDING DEVICE WITH A FLAT RECESSED HOUSING|

US5124973A|1988-02-04|1992-06-23|Pioneer Electronic Corporation|Tilt control mechanism|

NL8800373A|1988-02-16|1989-09-18|Philips Nv|ELECTRO-OPTICAL DEVICE.|

US5150343A|1989-07-19|1992-09-22|Matsushita Electric Industrial Co., Ltd.|Miniaturized low-power-consumption optical head provided with a state transformation mechanism|

US4980880A|1989-11-06|1990-12-25|Laser Magnetic Storage International Company|Method and apparatus for simultaneously reading both sides of an optical storage disk|

US5218585A|1990-10-01|1993-06-08|International Business Machines Corporation|Phase shifting feedback control in an optical disk drive|

US5815344A|1992-02-17|1998-09-29|Sony Corporation|Disc cartridge loading apparatus|

JP2856008B2|1992-10-30|1999-02-10|日本ビクター株式会社|Optical disc player tilt servo system|

EP0709834B1|1994-10-31|2000-05-24|Matsushita Electric Industrial Co., Ltd.|Tilt sensor, optical disk, and tilt compensating method for performing a stable tilt compensating control, and apparatus utilizing the same|

KR100195104B1|1996-06-17|1999-06-15|윤종용|Disk player for adjustable tilt and phase change|

US6426925B1|1998-10-09|2002-07-30|Sony Corporation|Recording and/or reproducing apparatus with tilt adjustment mechanism|

JP3626644B2|1999-09-29|2005-03-09|松下電器産業株式会社|Optical disc apparatus and spindle motor mounting method thereof|

KR100391043B1|2001-01-15|2003-07-12|주식회사 Dm테크놀로지|Tilt calibration apparatus of disk player|

US20070297301A1|2004-11-30|2007-12-27|Koninklijke Philips Electronics, N.V.|Method And Device For Automatic Disc Skew Correction|

法律状态:

优先权:

申请号 | 申请日 | 专利标题

NL8500592A|NL8500592A|1985-03-04|1985-03-04|ELECTRO-OPTICAL DEVICE.|

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