JPS6445314U

JPS6445314U -

Info

Publication number: JPS6445314U
Application number: JP13854487U
Authority: JP
Priority date: 1987-09-10
Filing date: 1987-09-10
Publication date: 1989-03-20

Description

[Brief explanation of the drawing]

第１図は本考案の光学式ピツクアツプ装置のグ
レーテイングのベースの斜視図、第２図ａ及びｂ
はその基台の平面図と正面図、第３図はその光学
部品の構成図、第４図はそのコリメータレンズと
反射板のホルダの斜視図、第５図はそのベースの
基台の組み立て状態を示す斜視図、第６図はその
ホルダと基台の組み立て状態を示す斜視図、第７
図は従来の光学式ピツクアツプ装置の断面図、第
８図はその光学部品の構成図である。１……レーザダイオード、２……グレーテイン
グ、３……ハーフミラー、４……コリメータレン
ズ、５……反射板、６……対物レンズ、７……デ
イスク、８……凹レンズ、９……受光素子、２１
……基台、２２……孔、２３……ホルダ、２４…
…スプリング、２５……取り付け部材、３１……
ホルダ、３２……取付部、３３……ホルダ、４１
……ベース、４１ａ……孔、４１ｂ……平面部、
４１ｃ，４１ｄ……孔、４１ｅ……上平面、４１
ｆ……孔、４１ｇ……底面、４２……ホルダ、４
２ａ……フランジ、４２ｂ……ガイド部、４２ｃ
……突出部、４２ｄ……二股部、４２ｅ……係止
部、４３……板バネ、４４……押さえ部、４４ａ
，４４ｂ……突起、４４ｃ……孔、５１……基台
、５１ａ乃至５１ｅ……孔、５１ｆ……取付面、
７１……ホルダ、７１ａ乃至７１ｃ……孔、７１
ｄ……突条、７１ｅ……突起、７１ｆ……傾斜面
。 Fig. 1 is a perspective view of the base of the grating of the optical pickup device of the present invention, Fig. 2 a and b
3 is a plan view and a front view of the base, FIG. 3 is a configuration diagram of the optical components, FIG. 4 is a perspective view of the collimator lens and reflector holder, and FIG. 5 is the assembled state of the base. FIG. 6 is a perspective view showing the assembled state of the holder and the base, FIG.
The figure is a sectional view of a conventional optical pickup device, and FIG. 8 is a configuration diagram of its optical components. 1... Laser diode, 2... Grating, 3... Half mirror, 4... Collimator lens, 5... Reflector, 6... Objective lens, 7... Disc, 8... Concave lens, 9... Light receiving Motoko, 21
... Base, 22 ... Hole, 23 ... Holder, 24 ...
...Spring, 25...Mounting member, 31...
Holder, 32... Mounting part, 33... Holder, 41
... base, 41a ... hole, 41b ... plane part,
41c, 41d...hole, 41e...upper plane, 41
f...hole, 41g...bottom, 42...holder, 4
2a...Flange, 42b...Guide part, 42c
...Protrusion part, 42d...Bifurcated part, 42e...Locking part, 43...Plate spring, 44...Press part, 44a
, 44b...protrusion, 44c...hole, 51...base, 51a to 51e...hole, 51f...mounting surface,
71... Holder, 71a to 71c... Hole, 71
d...Protrusion, 71e...Protrusion, 71f...Slanted surface.

Claims

[Scope of utility model registration request]

A base, a light source fixed to the base, a grating that divides light output from the light source, a holder that holds the grating, a base that rotatably supports the holder, and the light source. a first hole formed in the base in a direction substantially perpendicular to the optical axis of light output from the base and into which the base is fitted; and a first hole supported by the base fitted in the first hole. a second hole formed in the base through which a member that rotates the holder is inserted; a reflecting plate that reflects light output from the grating onto a recording medium; An optical pickup device comprising a light receiving element that receives light.