JPS62175418U - - Google Patents
Info
- Publication number
- JPS62175418U JPS62175418U JP6029386U JP6029386U JPS62175418U JP S62175418 U JPS62175418 U JP S62175418U JP 6029386 U JP6029386 U JP 6029386U JP 6029386 U JP6029386 U JP 6029386U JP S62175418 U JPS62175418 U JP S62175418U
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical head
- mirror
- detection device
- position detection
- 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 5
- 238000001514 detection method Methods 0.000 claims 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Mounting And Adjusting Of Optical Elements (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を示すもので光ヘツ
ドの内部構造の平面図、第２図は第１図における
対物レンズ近傍の斜視図、第３図は同対物レンズ
近傍の正面図、第４図は第３図における左側面図
、第５図は第３図における底面図である。
７…９０°ミラー、８…対物レンズ、１４…対
物レンズホルダ、１４ａ…レンズ枠部、１４ｂ…
反射面、１５…対物レンズ駆動装置、１７…光セ
ンサ、１８…差動増幅器。
Fig. 1 shows an embodiment of the present invention; Fig. 2 is a plan view of the internal structure of the optical head; Fig. 2 is a perspective view of the vicinity of the objective lens in Fig. 1; Fig. 3 is a front view of the vicinity of the objective lens; 4 is a left side view in FIG. 3, and FIG. 5 is a bottom view in FIG. 3. 7... 90° mirror, 8... Objective lens, 14... Objective lens holder, 14a... Lens frame, 14b...
Reflection surface, 15... Objective lens drive device, 17... Optical sensor, 18... Differential amplifier.
Claims (1)
キング方向両側に形成された外向き傾斜の反射面
と、対物レンズ下方に配置された９０°ミラーの
両側に設けられ、コリメータ光の前記反射面に当
たつて反射した光を受光する光センサとを備えた
ことを特徴とする光ヘツドの対物レンズ位置検出
装置。 An outwardly inclined reflective surface is formed on both sides of the back surface of the lens frame of the objective lens holder in the tracking direction, and a 90° mirror is provided below the objective lens. 1. An objective lens position detection device for an optical head, comprising: an optical sensor that receives light reflected by an optical head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6029386U JPS62175418U (en) | 1986-04-23 | 1986-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6029386U JPS62175418U (en) | 1986-04-23 | 1986-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62175418U true JPS62175418U (en) | 1987-11-07 |
Family
ID=30892580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6029386U Pending JPS62175418U (en) | 1986-04-23 | 1986-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62175418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009542361A (en) * | 2006-06-28 | 2009-12-03 | ボシュ・アンド・ロム・インコーポレイテッド | Optical material and method of modifying the refractive index |
-
1986
- 1986-04-23 JP JP6029386U patent/JPS62175418U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009542361A (en) * | 2006-06-28 | 2009-12-03 | ボシュ・アンド・ロム・インコーポレイテッド | Optical material and method of modifying the refractive index |