JPH0345213U - - Google Patents
Info
- Publication number
- JPH0345213U JPH0345213U JP10427689U JP10427689U JPH0345213U JP H0345213 U JPH0345213 U JP H0345213U JP 10427689 U JP10427689 U JP 10427689U JP 10427689 U JP10427689 U JP 10427689U JP H0345213 U JPH0345213 U JP H0345213U
- Authority
- JP
- Japan
- Prior art keywords
- parallel plate
- adjusting
- semiconductor laser
- inclination angle
- pickup device
- 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
- 239000004065 semiconductor Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図及び第２図は本考案の一実施例を示す図
、第３図は非点収差未補正時の記録層上のビーム
スポツトの形状を示す図、第４図は非点収差の補
正状態を示す図である。
１……半導体レーザ、４……平行平板、３，５
及び６……板バネ、バネ、及びネジ（調節手段）
。
Figures 1 and 2 are diagrams showing an embodiment of the present invention, Figure 3 is a diagram showing the shape of a beam spot on the recording layer when astigmatism is not corrected, and Figure 4 is a diagram showing correction of astigmatism. It is a figure showing a state. 1...Semiconductor laser, 4...Parallel plate, 3,5
and 6...plate spring, spring, and screw (adjustment means)
.
Claims (1)
して傾く様に透明な平行平板を配すると共にこの
平行平板の傾き角を調整する調整手段を配したこ
とを特徴とする光ピツクアツプ装置。 An optical pickup device characterized in that a transparent parallel plate is arranged so as to be inclined with respect to the optical axis of a beam emitted from a semiconductor laser, and an adjusting means for adjusting the inclination angle of the parallel plate is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10427689U JPH0345213U (en) | 1989-09-05 | 1989-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10427689U JPH0345213U (en) | 1989-09-05 | 1989-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345213U true JPH0345213U (en) | 1991-04-25 |
Family
ID=31653073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10427689U Pending JPH0345213U (en) | 1989-09-05 | 1989-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345213U (en) |
-
1989
- 1989-09-05 JP JP10427689U patent/JPH0345213U/ja active Pending
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