JPS62198515U - - Google Patents
Info
- Publication number
- JPS62198515U JPS62198515U JP8645686U JP8645686U JPS62198515U JP S62198515 U JPS62198515 U JP S62198515U JP 8645686 U JP8645686 U JP 8645686U JP 8645686 U JP8645686 U JP 8645686U JP S62198515 U JPS62198515 U JP S62198515U
- Authority
- JP
- Japan
- Prior art keywords
- emitting element
- light
- light emitting
- coupling lens
- beam splitter
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Description
第１図は本考案の一実施例を示す要部断面図、
第２図は上記実施例におけるバツクフオーカシン
グ方法の一例を示す概略図である。
２０…カツプリングレンズ、２１…レンズ鏡筒
、２２…調整固定ネジ、３０…発光素子ホルダー
。
FIG. 1 is a cross-sectional view of essential parts showing an embodiment of the present invention;
FIG. 2 is a schematic diagram showing an example of the back focusing method in the above embodiment. 20... Coupling lens, 21... Lens barrel, 22... Adjustment fixing screw, 30... Light emitting element holder.
Claims (1)
ビームスプリツターおよび１／４波長板等を支持
する光ピツクアツプハウジングとが着脱自在に構
成された光ピツクアツプにおいて、上記発光素子
と偏光ビームスプリツタとの中間に配置されるカ
ツプリングレンズを、このカツプリングレンズの
口径の少なくとも２倍以上の長さを有するレンズ
鏡筒の上記偏光ビームスプリツター寄りの適所に
固定するとともに、このレンズ鏡筒の外周部を上
記発光素子ホルダーおよび上記光ピツクアツプハ
ウジングによつて上記カツプリングレンズの光軸
に沿う方向に摺動自在に保持し、上記レンズ鏡筒
の発光素子がわの外周部を上記発光素子ホルダー
に固定することを特徴とする光ピツクアツプ。 In an optical pick-up in which a light-emitting element holder supporting a light-emitting element and an optical pick-up housing supporting a polarizing beam splitter, a 1/4 wavelength plate, etc. are removably configured, an intermediate portion between the light emitting element and the polarizing beam splitter is provided. A coupling lens disposed in the coupling lens is fixed at a suitable position near the polarizing beam splitter of a lens barrel having a length at least twice the aperture of the coupling lens, and the outer circumference of the lens barrel is The coupling lens is held slidably in a direction along the optical axis by the light emitting element holder and the optical pickup housing, and the outer periphery of the lens barrel near the light emitting element is fixed to the light emitting element holder. A light pick-up characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8645686U JPS62198515U (en) | 1986-06-06 | 1986-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8645686U JPS62198515U (en) | 1986-06-06 | 1986-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62198515U true JPS62198515U (en) | 1987-12-17 |
Family
ID=30942777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8645686U Pending JPS62198515U (en) | 1986-06-06 | 1986-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62198515U (en) |
-
1986
- 1986-06-06 JP JP8645686U patent/JPS62198515U/ja active Pending