JPH0462510U - - Google Patents
Info
- Publication number
- JPH0462510U JPH0462510U JP10470990U JP10470990U JPH0462510U JP H0462510 U JPH0462510 U JP H0462510U JP 10470990 U JP10470990 U JP 10470990U JP 10470990 U JP10470990 U JP 10470990U JP H0462510 U JPH0462510 U JP H0462510U
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- information recording
- reproducing device
- optical information
- shift mechanism
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Optical Head (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図は本考案の一実施例の要部の斜視図、第
２図はその平面配置図、第３図は要部の分解斜視
図、第４図は第１平行シフト機構の動作を説明す
るための模式的な平面図、第５図は第２平行シフ
ト機構の動作を説明するための模式的な平面図、
第６図は本考案の変形例を示し、同図ａはその斜
視図、同図ｂはその作用を示す側面図、第７図は
本考案が適用される光デイクス装置の概略構成斜
視図である。
１……レーザ光源、２……コリメータレンズ、
３……ビーム整形プリズム、４……ビームスプリ
ツタ、５……ミラー、６……対物レンズ、７……
光デイスク、８……信号再生用光学系、９……サ
ーボ用光学系、１０，１１……レンズ、１２，１
３……センサ、１４……キヤリツジ、１５……ガ
イドレール、２１……第１シフト機構、２２……
第２シフト機構、２３……平行平面板、２４……
支持枠、２５……軸部、２５ａ……環状溝、２６
……支持台、２６ａ……隙間、２７……円形穴、
２８……係止板バネ、２９……調整用穴、３１…
…基準治具、３２……丸穴、３３……調整治具、
３４……偏心ピン。
Fig. 1 is a perspective view of the main parts of an embodiment of the present invention, Fig. 2 is a plan layout thereof, Fig. 3 is an exploded perspective view of the main parts, and Fig. 4 explains the operation of the first parallel shift mechanism. FIG. 5 is a schematic plan view for explaining the operation of the second parallel shift mechanism;
FIG. 6 shows a modification of the present invention; FIG. 6A is a perspective view thereof, FIG. 6B is a side view showing its operation, and FIG. be. 1... Laser light source, 2... Collimator lens,
3...Beam shaping prism, 4...Beam splitter, 5...Mirror, 6...Objective lens, 7...
Optical disk, 8... Optical system for signal reproduction, 9... Optical system for servo, 10, 11... Lens, 12, 1
3... Sensor, 14... Carriage, 15... Guide rail, 21... First shift mechanism, 22...
Second shift mechanism, 23... Parallel plane plate, 24...
Support frame, 25... Shaft portion, 25a... Annular groove, 26
...Support stand, 26a...Gap, 27...Circular hole,
28... Locking leaf spring, 29... Adjustment hole, 31...
...Reference jig, 32...Round hole, 33...Adjustment jig,
34...Eccentric pin.
Claims (1)
させてビーム整形を行うビーム整形機構を備えた
光学式情報記録再生装置において、前記ビーム整
形機構へのレーザ光の入射側と出射側の少なくと
も一方に、前記ビーム幅の拡大方向にレーザ光を
平行偏位する平行シフト機構を設けたことを特徴
とする光学式情報記録再生装置の光軸調整機構。 In an optical information recording/reproducing device equipped with a beam shaping mechanism that expands the beam width of a laser beam in at least one direction and shapes the beam, on at least one of the incident side and output side of the laser beam to the beam shaping mechanism, An optical axis adjustment mechanism for an optical information recording/reproducing device, characterized in that a parallel shift mechanism is provided for parallelly shifting a laser beam in the beam width expansion direction.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990104709U JP2580805Y2 (en) | 1990-10-04 | 1990-10-04 | Optical axis adjustment mechanism of optical information recording / reproducing device |
| US07/770,342 US5237457A (en) | 1990-10-04 | 1991-10-03 | Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism |
| US08/045,703 US5343332A (en) | 1990-10-04 | 1993-04-14 | Apparatus for adjusting optical axis including a beam shaping prism |
| US08/053,688 US5341246A (en) | 1990-10-04 | 1993-04-29 | Apparatus for adjusting an optical axis including plates on opposite sides of a beam shaping prism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990104709U JP2580805Y2 (en) | 1990-10-04 | 1990-10-04 | Optical axis adjustment mechanism of optical information recording / reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0462510U true JPH0462510U (en) | 1992-05-28 |
| JP2580805Y2 JP2580805Y2 (en) | 1998-09-17 |
Family
ID=31850100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990104709U Expired - Fee Related JP2580805Y2 (en) | 1990-10-04 | 1990-10-04 | Optical axis adjustment mechanism of optical information recording / reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2580805Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60140227U (en) * | 1984-02-28 | 1985-09-17 | 日本電気ホームエレクトロニクス株式会社 | light pick up |
| JPH0266733A (en) * | 1988-08-31 | 1990-03-06 | Asahi Optical Co Ltd | Optical system for optical information recording and reproducing device |
-
1990
- 1990-10-04 JP JP1990104709U patent/JP2580805Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60140227U (en) * | 1984-02-28 | 1985-09-17 | 日本電気ホームエレクトロニクス株式会社 | light pick up |
| JPH0266733A (en) * | 1988-08-31 | 1990-03-06 | Asahi Optical Co Ltd | Optical system for optical information recording and reproducing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2580805Y2 (en) | 1998-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |