JPS60163515U

JPS60163515U - Pickup device for optical information reading device

Info

Publication number: JPS60163515U
Application number: JP4952284U
Authority: JP
Inventors: 育也菊池
Original assignee: パイオニア株式会社
Priority date: 1984-04-04
Filing date: 1984-04-04
Publication date: 1985-10-30

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１．図ないし第３図は従来のピックアップ装置を示す
図、第４図及び第５図は本考案に係るピックアップ装置
の要部の各々斜視図及び側断面図、第６図は該ピックア
ップ装置の一部詳細図、第７図ａ、　ｂ及び第８図は該
ピックアップ装置の一部変形例を示す図である。主要部分の符号の説明、１・・・レーザダイオード、４
・・・グレイティング、３１・・・円筒状ホルダ、３２
・・・保持部材、３２ａ・・・案内孔、３３・・・固定
ピン、３４・・・バネ部材。蝉、／図1st. 3 to 3 are views showing a conventional pickup device, FIGS. 4 and 5 are perspective views and side sectional views of essential parts of the pickup device according to the present invention, and FIG. 6 is a part of the pickup device. Detailed views, FIGS. 7a and 7b, and FIG. 8 show partially modified examples of the pickup device. Explanation of symbols of main parts, 1... Laser diode, 4
... Grating, 31 ... Cylindrical holder, 32
... Holding member, 32a... Guide hole, 33... Fixing pin, 34... Spring member. cicada, / figure

Claims

[Scope of utility model registration request]

(1) an optical system consisting of a plurality of optical elements including a light emitting element; a cylindrical holder to which at least one optical element of the optical system is fixed; a holding member that holds the optical system and the holder; and the holder. a fixing mechanism for fixing the holder to the holding member, the holder is fitted into a guide hole provided in the holding member so as to be freely movable in the axial direction, and the fixing mechanism is configured to fix the holder to the holding member in an axial direction of the guide hole. a fixing pin that is movable in a direction substantially perpendicular to the center and whose one end can come into contact with the outer circumferential surface of the holder; and a fixing pin that is fixedly provided on the holding member so that the fixing pin is moved in a direction approaching the holder.
1. A pickup device in an optical information reading device, characterized in that the pickup device comprises a spring member that is biased.

(2) Optical information according to claim 1 of the utility model registration claim, characterized in that the contact portion of the fixing pin with the outer circumferential surface of the holder has a radius of curvature equal to the radius of curvature of the outer circumferential surface. A pickup device in a reading device.