JPS62175415U - - Google Patents
Info
- Publication number
- JPS62175415U JPS62175415U JP6029486U JP6029486U JPS62175415U JP S62175415 U JPS62175415 U JP S62175415U JP 6029486 U JP6029486 U JP 6029486U JP 6029486 U JP6029486 U JP 6029486U JP S62175415 U JPS62175415 U JP S62175415U
- Authority
- JP
- Japan
- Prior art keywords
- optical head
- optical
- mirror
- attaching
- utility
- 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
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Description
第１図は本考案の一実施例を示す光ヘツドの平
面図、第２図は同一部切欠き斜視図、第３図は軸
ずれ検出回路図、第４図は従来の光ヘツドを示す
平面図、第５図は第４図における対物レンズ近傍
の側面図、第６図は軸ずれによる問題についての
説明図である。
７…９０°ミラー、８…対物レンズ、２１…光
ヘツドベース、２１ａ…嵌合部、２２…光軸検出
用治具、２２ａ…４分割センサ（光センサ）。
Fig. 1 is a plan view of an optical head showing an embodiment of the present invention, Fig. 2 is a partially cutaway perspective view of the same, Fig. 3 is an axis deviation detection circuit diagram, and Fig. 4 is a plan view showing a conventional optical head. 5 is a side view of the vicinity of the objective lens in FIG. 4, and FIG. 6 is an explanatory diagram of the problem caused by axis misalignment. 7... 90° mirror, 8... Objective lens, 21... Optical head base, 21a... Fitting portion, 22... Optical axis detection jig, 22a... 4-split sensor (optical sensor).
Claims (1)
分に、光センサ付きの筒状の光軸検出用治具を位
置決めされた状態で取り付けるための嵌合部を形
成したことを特徴とする光ヘツド。 An optical head characterized in that a fitting part for attaching a cylindrical optical axis detection jig with an optical sensor in a positioned state is formed in a part of the optical head base centered on a 90° mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6029486U JPS62175415U (en) | 1986-04-23 | 1986-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6029486U JPS62175415U (en) | 1986-04-23 | 1986-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62175415U true JPS62175415U (en) | 1987-11-07 |
Family
ID=30892582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6029486U Pending JPS62175415U (en) | 1986-04-23 | 1986-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62175415U (en) |
-
1986
- 1986-04-23 JP JP6029486U patent/JPS62175415U/ja active Pending