JPH01159216U - - Google Patents
Info
- Publication number
- JPH01159216U JPH01159216U JP5421088U JP5421088U JPH01159216U JP H01159216 U JPH01159216 U JP H01159216U JP 5421088 U JP5421088 U JP 5421088U JP 5421088 U JP5421088 U JP 5421088U JP H01159216 U JPH01159216 U JP H01159216U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- lens holder
- metal pipe
- support shaft
- fixed part
- 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
- 239000002184 metal Substances 0.000 claims description 4
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
Landscapes
- Optical Recording Or Reproduction (AREA)
Description
第１図乃至第６図は本考案の一実施例を示した
ものである。第１図は本装置の斜面図、第２図は
対物レンズホルダ及び板ばねの縦断側面図、第３
図は支持軸の要部斜面図、第４図乃至第６図は金
属パイプ内に支持軸を取付ける手順を説明する縦
断側面図である。第７図乃至第１０図は従来例を
示すものであり、第７図は対物レンズホルダ及び
板ばねの縦断側面図、第８図乃至第１０図は対物
レンズホルダへ支持軸を取付ける手順を説明する
一部切欠縦断側面図である。
１０……支持枠、１１……開口部、１２……固
定部、１３……板ばね、１３ａ……先端部、１４
……対物レンズホルダ、１５……穴、１６……金
属パイプ、１７……弾性材、１８……支持軸、２
０……レンズ。
1 to 6 show an embodiment of the present invention. Figure 1 is an oblique view of the device, Figure 2 is a longitudinal cross-sectional side view of the objective lens holder and leaf spring, and Figure 3 is a side view of the objective lens holder and leaf spring.
The figure is a perspective view of the main part of the support shaft, and FIGS. 4 to 6 are longitudinal sectional side views illustrating the procedure for installing the support shaft in a metal pipe. Figures 7 to 10 show a conventional example, Figure 7 is a longitudinal cross-sectional side view of the objective lens holder and leaf spring, and Figures 8 to 10 explain the procedure for attaching the support shaft to the objective lens holder. FIG. DESCRIPTION OF SYMBOLS 10... Support frame, 11... Opening part, 12... Fixed part, 13... Leaf spring, 13a... Tip part, 14
... Objective lens holder, 15 ... Hole, 16 ... Metal pipe, 17 ... Elastic material, 18 ... Support shaft, 2
0...Lens.
Claims (1)
へレーザーを収束させるための対物レンズホルダ
支持装置に於て、中央に開口部を開穿した支持枠
に固定部を立設し、該固定部の上部及び下部から
前記開口部方向に板ばねを突設させ、更に、金属
パイプの軸心部にゴム等の弾性材を介して支持軸
を設け、この金属パイプをレンズの光軸と平行に
対物レンズホルダの穴へ嵌着すると共に、該支持
軸の両端部を前記板ばねの夫々の先端部に固着し
たことを特徴とするレーザーピツクアツプの対物
レンズホルダ支持装置。 In an objective lens holder support device for converging a laser beam onto a light receiving element and a disk of a laser pickup, a fixed part is set upright on a support frame with an opening in the center, and the above-mentioned parts are inserted from the upper and lower parts of the fixed part. A leaf spring is provided protruding in the direction of the opening, and a support shaft is provided at the center of the metal pipe via an elastic material such as rubber, and this metal pipe is inserted into the hole of the objective lens holder parallel to the optical axis of the lens. 1. An objective lens holder support device for a laser pickup, characterized in that both ends of the support shaft are fixed to respective tips of the leaf springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5421088U JPH0521704Y2 (en) | 1988-04-22 | 1988-04-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5421088U JPH0521704Y2 (en) | 1988-04-22 | 1988-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01159216U true JPH01159216U (en) | 1989-11-02 |
| JPH0521704Y2 JPH0521704Y2 (en) | 1993-06-03 |
Family
ID=31280146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5421088U Expired - Lifetime JPH0521704Y2 (en) | 1988-04-22 | 1988-04-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521704Y2 (en) |
-
1988
- 1988-04-22 JP JP5421088U patent/JPH0521704Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0521704Y2 (en) | 1993-06-03 |
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