CN1166026A - Pickup adjusting apparatus of disk player - Google Patents
Pickup adjusting apparatus of disk player Download PDFInfo
- Publication number
- CN1166026A CN1166026A CN96109943A CN96109943A CN1166026A CN 1166026 A CN1166026 A CN 1166026A CN 96109943 A CN96109943 A CN 96109943A CN 96109943 A CN96109943 A CN 96109943A CN 1166026 A CN1166026 A CN 1166026A
- Authority
- CN
- China
- Prior art keywords
- guide
- axis
- optical head
- screw
- adjusting apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Moving Of Heads (AREA)
Abstract
Disclosed is a disk drive optical head adjusting device. The device comprises an underplate which is provided with a pair of guiding shafts used for supporting and guiding the optical head on, and a threaded hole and a lockout hole matched with each other; a bolt which is matched with the threaded hole and is contacted with the bottom of at least one end of the guiding shaft to ensure the end of the guiding shaft to rotate along with the bolt; and an elastomer with one end fixedly embedded into the lockout hole and the other end contacted with the upper surface of the guiding shaft, for realizing elastic downward deviation of the guiding shaft.
Description
What the present invention relates to is a kind of optical head that is used on the CD player, particularly relates to a kind of pickup adjusting apparatus, and this device can be finely tuned to guarantee that optical head remains on the position of relative CD level the degree of tilt of optical head.
On such as CDP (Compact Disk Player), LDP (Laser Disk Player) or DVDP CD player such as (DigitalVideo Disk Player), optical head should remain on the horizontal level with respect to CD, thereby can guarantee that the laser beam of being sent by optical head can vertically be incident on the CD.
Fig. 1 has represented the optical head part of a normal optical disk machine.As shown in the figure, a turntable 1 that is used to place the CD (not shown) and a pair of axis of guide 2 that is used for support of optical 3 are installed on base plate 4.Be provided with in a side of optical head 3 that a gear parts (not shown) is used for and a screw rod 5 engagements.Screw rod 5 is driven by a CD-ROM drive motor 6.
Have on the CD player of said structure, when CD-ROM drive motor 6 drive screws 5 rotated, the rotation of screw rod 5 made optical head 3 slide along the axis of guide 2.Therefore, when optical head 3 during, the information that is recorded on the CD is read along the moving radially of CD.
When optical disk reading is won the confidence breath, the laser beam of being launched by optical head should vertically be mapped on the CD on the desired position.Yet the droop error of optical head focusing error or optical head 3 causes reading error sometimes.When laser beam can not converge on the CD exactly according to the distance between CD and the optical head 3, can produce focusing error.During radially or tangentially with respect to disc tilt, can produce droop error at optical head 3.Above-mentioned error can compensate by the focusing and the tracking servo of optical head 3, but because the axis of guide 2 of support of optical 3 is fixedlyed connected with base plate 4 by fixture 7 in assembly technology, thereby this compensation also is very limited.Therefore, it is impossible eliminating these errors fully.Under the situation lower at assembly precision, that tolerance is bigger, correcting said error is impossible.
For addressing the above problem, the purpose of this invention is to provide a kind of pickup adjusting apparatus of disk player, this device can accurately be adjusted the degree of tilt of optical head with respect to CD, thereby revises radially the droop error of optical head along CD.
For achieving the above object, the CD player optical pickup tilt degree adjusting gear that is provided comprises: one has and a pair ofly is used to support and the base plate of the axis of guide of the optical head on it that leads, and is formed with paired a screw and an obturator hernia on base plate; The bottom connection of at least one end touches on a screw that cooperates with screw, it and the axis of guide, makes the end of this axis of guide can the lifting with the rotation of screw; One one end is fixedly embedded the elastic component in obturator hernia, and the other end of this elastic component contacts with the upper surface of the axis of guide, thereby the axis of guide is flexibly departed from downwards.
By the description of reference accompanying drawing to the preferred embodiments of the present invention, above-mentioned purpose of the present invention and advantage will be clearer.
Fig. 1 is a skeleton view, shows the optical head part of a normal optical disk machine;
Fig. 2 is a planimetric map, shows a CD player that has pickup adjusting apparatus of the present invention;
Fig. 3 is a decomposition diagram, shows pickup adjusting apparatus of the present invention; And
Fig. 4 is a sectional view, shows the pickup adjusting apparatus of the present invention that has assembled.
Fig. 2 has represented a CD player with pickup adjusting apparatus of the present invention.In this figure, the label identical with Fig. 1 represented identical parts.As shown in Figure 2, each end of a pair of axis of guide 2 is fixed on the base plate 4 by securing member 11 and 12.The other end at the axis of guide 2 is provided with a pickup adjusting apparatus of the present invention.This pickup adjusting apparatus comprises the elastic component 13 that is used for support guide axle 2 flexibly and 14 and be used for support member 15a, 15b, 15c and 15d at the axis of guide 2 supported on both sides axis of guides 2.
Shown in Fig. 3 and 4, the axis of guide 2 is supported by support member 15c and 15d, and an end of described support member places a screw 16 that forms on the base plate 4.Screw 17 cooperates with screw 16 and contacts with a bottom portion of the axis of guide 2.Also be formed with an obturator hernia 18 with screw 16 adjacents on base plate 4, elastic component 14 inserts in this obturator hernia.A step part 14b who forms at elastic component one end is embedded in the obturator hernia 18 and is hooked on the base plate 4.The other end at elastic component is formed with an arcuate part 14a, and this arcuate part contacts with the upper surface of the axis of guide 2, is used to make the axis of guide 2 flexibly to depart from downwards.Here, elastic component 13 and 14 (see figure 2)s leaf spring preferably.
The following course of work of describing pickup adjusting apparatus with reference to Fig. 2 to Fig. 4 with said structure.Rotating screw 17 clockwise or counterclockwise, make the axis of guide 2 lifting thereupon that contacts with screw 17, adjust the degree of tilt of optical head 3 thus.At this moment, elastic component 13 and 14 rotation to screw 17 in support guide axle 2 produces certain resistance.
As mentioned above, the pickup adjusting apparatus of CD player of the present invention can make optical head adjust to on the position that the CD that is rotating on the turntable is parallel to each other.Therefore, the present invention has improved the reliability of focusing and tracking servo and has improved the information playback effect of CD player.
Claims (2)
1, a kind of pickup adjusting apparatus of disk player, comprising:
One has and a pair ofly is used to support and the base plate of the axis of guide of the optical head on it that leads, and is formed with paired a screw and an obturator hernia on described base plate;
One cooperate with described screw and with the axis of guide on the bottom connection of at least one end touch and make the screw that the end of this axis of guide can the lifting with the rotation of screw; And
An elastic component, the one end is fixedly embedded in obturator hernia, and its other end contacts with the upper surface of the axis of guide, and the axis of guide is flexibly departed from downwards.
2, pickup adjusting apparatus of disk player as claimed in claim 1 is characterized in that, it also comprises and is installed in the support member that described axis of guide both sides are used to support the described axis of guide.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960016954A KR100189913B1 (en) | 1996-05-20 | 1996-05-20 | Pickup tilt adjusting device for disc player |
| KR16954/96 | 1996-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1166026A true CN1166026A (en) | 1997-11-26 |
| CN1085370C CN1085370C (en) | 2002-05-22 |
Family
ID=19459178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96109943A Expired - Fee Related CN1085370C (en) | 1996-05-20 | 1996-07-22 | Pickup adjusting apparatus of disk player |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2793176B2 (en) |
| KR (1) | KR100189913B1 (en) |
| CN (1) | CN1085370C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416670C (en) * | 2003-12-11 | 2008-09-03 | 汤姆森特许公司 | Recording and/or reproduction apparatus for optical recording media with means for parallel orientation of the scanning device with respect to the surface of the recording medium |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100497855B1 (en) * | 1997-10-27 | 2005-09-16 | 엘지전자 주식회사 | Pick-up tilt control device for optical disc player |
| JP3000984B2 (en) * | 1997-11-28 | 2000-01-17 | 日本ビクター株式会社 | Optical disk drive |
| JP3509596B2 (en) * | 1998-02-06 | 2004-03-22 | ティアック株式会社 | Pickup adjustment mechanism |
| KR100439977B1 (en) * | 2001-12-07 | 2004-07-12 | 삼성전기주식회사 | Optical pick-up control apparatus and optical write and read apparatus comprising thereof |
| KR100438581B1 (en) * | 2001-12-17 | 2004-07-02 | 엘지전자 주식회사 | Tilt control apparatus of optical recoder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329230U (en) * | 1986-08-12 | 1988-02-26 | ||
| JPH01211248A (en) * | 1988-02-17 | 1989-08-24 | Sanyo Electric Co Ltd | Tilt adjusting mechanism for optical disk player |
| JPH0276367U (en) * | 1988-11-30 | 1990-06-12 | ||
| JPH06195736A (en) * | 1992-11-06 | 1994-07-15 | Goldstar Alps Electron Co Ltd | Optical-disk player |
-
1996
- 1996-05-20 KR KR1019960016954A patent/KR100189913B1/en not_active IP Right Cessation
- 1996-07-22 CN CN96109943A patent/CN1085370C/en not_active Expired - Fee Related
- 1996-08-02 JP JP8205081A patent/JP2793176B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416670C (en) * | 2003-12-11 | 2008-09-03 | 汤姆森特许公司 | Recording and/or reproduction apparatus for optical recording media with means for parallel orientation of the scanning device with respect to the surface of the recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100189913B1 (en) | 1999-06-01 |
| CN1085370C (en) | 2002-05-22 |
| JP2793176B2 (en) | 1998-09-03 |
| JPH09306116A (en) | 1997-11-28 |
| KR970076578A (en) | 1997-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020522 Termination date: 20150722 |
|
| EXPY | Termination of patent right or utility model |