JPS6387635U - - Google Patents
Info
- Publication number
- JPS6387635U JPS6387635U JP18116286U JP18116286U JPS6387635U JP S6387635 U JPS6387635 U JP S6387635U JP 18116286 U JP18116286 U JP 18116286U JP 18116286 U JP18116286 U JP 18116286U JP S6387635 U JPS6387635 U JP S6387635U
- Authority
- JP
- Japan
- Prior art keywords
- beam splitter
- photodetector
- recording medium
- information recording
- optical system
- 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 6
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Optical Head (AREA)
Description
第１図はこの考案の一実施例による光ピツクア
ツプの概略構成図を示す図である。
１……光学系ホルダー、１ａ……光検出器と対
向する面、２……光源、３……ビームスプリツタ
、４……対物レンズ、５……平坦情報記録媒体上
、６……検出レンズ、７……光検出器、８……増
幅器、９……駆動機構、１０，１１……直角三角
柱プリズム、１２……半透明膜、１３……接着剤
。
FIG. 1 is a diagram showing a schematic configuration of an optical pickup according to an embodiment of this invention. DESCRIPTION OF SYMBOLS 1...Optical system holder, 1a...Surface facing the photodetector, 2...Light source, 3...Beam splitter, 4...Objective lens, 5...Flat information recording medium, 6...Detection lens , 7... Photodetector, 8... Amplifier, 9... Drive mechanism, 10, 11... Right triangular prism, 12... Transparent film, 13... Adhesive.
Claims (1)
報記録媒体上に集束させる対物レンズと、前記平
坦情報記録媒体からの反射光を電気信号に変換す
る光検出器と、前記平坦情報記録媒体からの反射
光を前記光検出器に導くビームスプリツタと、こ
のビームスプリツタを固定する光学系ホルダーと
を有する光ピツクアツプにおいて、 前記光検出器と対向する前記光学系ホルダーの
面を光学的粗面とし、前記ビームスプリツタの屈
折率と略等しい屈折率を有する接着剤で、前記ビ
ームスプリツタを前記光学系ホルダーの前記光学
的粗面とした面に固定してなることを特徴とする
光ピツクアツプ。[Claims for Utility Model Registration] At least a light source, an objective lens that focuses light from the light source onto a flat information recording medium, and a photodetector that converts reflected light from the flat information recording medium into an electrical signal; An optical pickup having a beam splitter that guides reflected light from the flat information recording medium to the photodetector, and an optical system holder that fixes the beam splitter, the optical system holder facing the photodetector. The beam splitter is fixed to the optically rough surface of the optical system holder using an adhesive having a refractive index substantially equal to the refractive index of the beam splitter. A light pick-up featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18116286U JPS6387635U (en) | 1986-11-27 | 1986-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18116286U JPS6387635U (en) | 1986-11-27 | 1986-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6387635U true JPS6387635U (en) | 1988-06-08 |
Family
ID=31125781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18116286U Pending JPS6387635U (en) | 1986-11-27 | 1986-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6387635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005301252A (en) * | 2004-04-09 | 2005-10-27 | Toshiba Corp | Multi-beam optical scanning device and image forming apparatus |
-
1986
- 1986-11-27 JP JP18116286U patent/JPS6387635U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005301252A (en) * | 2004-04-09 | 2005-10-27 | Toshiba Corp | Multi-beam optical scanning device and image forming apparatus |
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