JPS582733U - optical information reader - Google Patents
optical information readerInfo
- Publication number
- JPS582733U JPS582733U JP9414081U JP9414081U JPS582733U JP S582733 U JPS582733 U JP S582733U JP 9414081 U JP9414081 U JP 9414081U JP 9414081 U JP9414081 U JP 9414081U JP S582733 U JPS582733 U JP S582733U
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- laser beam
- optical
- information recording
- 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.)
- Granted
Links
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面′は何れも光学式情報読み取り装置を示すものであ
り、第１図は従来例を示す図、第２図は光・検出器の構
成を示す図、第３図は他の従来例を示す図、第４図は本
考案の実施例を示す図である。
２ａ、 ２ｂはコリメータレンズ、３は偏光ビームス
プリッタ、６はディスク、８はシリンドリカルレンズ、
Ｓは光検出器。The drawings' all show optical information reading devices, with Fig. 1 showing a conventional example, Fig. 2 showing the configuration of a light/detector, and Fig. 3 showing another conventional example. FIG. 4 is a diagram showing an embodiment of the present invention. 2a and 2b are collimator lenses, 3 is a polarizing beam splitter, 6 is a disk, 8 is a cylindrical lens,
S is a photodetector.
Claims (1)
射する第１光学系と、前記情報記録媒体にて反射された
反射レーザ光を前記ビーム玉プリッタに導きその光路を
前記第１光学系の光路と相違させた後に光検出器に導く
第２光学系とを有し、以って前記光検出器より情報信号
及び前記第１光学系を制御する為の制御信号を得る構成
とした装置に於いて、前記レーザ光を平行光にする為の
コリメータレンズを複数枚にて構成し、これ等のコリメ
ータレンズを前記ビームスプリッタを挾む如く配置して
前記第１光学系を構成し、以って前記情報記録媒体側に
配置された前記コリメータレンズを前記第２光学系に於
いては前記反射レーザ光を集束させる為のレンズとして
利用することを特徴とする光学式情報読み取り装置。a first optical system that irradiates a laser beam onto an information recording medium through a beam splitter; and a first optical system that guides the reflected laser beam reflected by the information recording medium to the beam splitter and makes its optical path different from the optical path of the first optical system. and a second optical system that guides the optical system to a photodetector, thereby obtaining an information signal and a control signal for controlling the first optical system from the photodetector. The first optical system is constituted by a plurality of collimator lenses for collimating the laser beam, and these collimator lenses are arranged to sandwich the beam splitter, thereby forming the information recording system. An optical information reading device characterized in that the collimator lens arranged on the medium side is used in the second optical system as a lens for converging the reflected laser beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9414081U JPS582733U (en) | 1981-06-24 | 1981-06-24 | optical information reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9414081U JPS582733U (en) | 1981-06-24 | 1981-06-24 | optical information reader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS582733U true JPS582733U (en) | 1983-01-08 |
| JPS6213231Y2 JPS6213231Y2 (en) | 1987-04-06 |
Family
ID=29889077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9414081U Granted JPS582733U (en) | 1981-06-24 | 1981-06-24 | optical information reader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6381001U (en) * | 1986-11-17 | 1988-05-28 | ||
| JPH0214436A (en) * | 1988-04-07 | 1990-01-18 | Insite Peripherals Inc | Apparatus and method of optical servo control utilizing optical reflective memory medium |
-
1981
- 1981-06-24 JP JP9414081U patent/JPS582733U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6381001U (en) * | 1986-11-17 | 1988-05-28 | ||
| JPH0214436A (en) * | 1988-04-07 | 1990-01-18 | Insite Peripherals Inc | Apparatus and method of optical servo control utilizing optical reflective memory medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6213231Y2 (en) | 1987-04-06 |
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