JPS636523U

JPS636523U -

Info

Publication number: JPS636523U
Application number: JP10010886U
Authority: JP
Priority date: 1986-06-30
Filing date: 1986-06-30
Publication date: 1988-01-16
Anticipated expiration: 2001-06-30
Also published as: JP2511574Y2

Description

[Brief explanation of the drawing]

第１図は本考案の回折格子支持構造の一実施例
を示す断面図で第１図ａは第３図におけるＡ部に
対応する縦断面図、第１図ｂは第１図ａのＡ―Ａ
横断面図である。第２図は、第１図ａの左側面図
、第３図は本考案および従来例の両者に共通する
光ピツクアツプの概略構成図、第４図は従来例を
示す断面図で第３図におけるＡ部に対応する縦断
面図。第５図は第４図の左側面図である。第６図
と第７図は第１図、第２図のリーフスプリング１
６と回折格子ホルダ３の斜視図である。１はピツクアツプ枠体、１ａは中空部、２は半
導体レーザ、３ｂは回折格子、１ｂは縦溝、１６
はリーフスプリング。 FIG. 1 is a sectional view showing one embodiment of the diffraction grating support structure of the present invention, FIG. 1a is a longitudinal sectional view corresponding to section A in FIG. 3, and FIG. A
FIG. 2 is a left side view of FIG. 1a, FIG. 3 is a schematic configuration diagram of an optical pickup common to both the present invention and the conventional example, and FIG. 4 is a sectional view showing the conventional example. A vertical cross-sectional view corresponding to part A. FIG. 5 is a left side view of FIG. 4. Figures 6 and 7 are the leaf springs 1 in Figures 1 and 2.
6 and a perspective view of the diffraction grating holder 3. FIG. 1 is a pick-up frame body, 1a is a hollow part, 2 is a semiconductor laser, 3b is a diffraction grating, 1b is a vertical groove, 16
is a leaf spring.

Claims

[Scope of utility model registration request]

In a diffraction grating support structure for an optical pick-up, in which a diffraction grating is housed together with a semiconductor laser in a hollow part formed in a pick-up frame body, and the diffraction grating is pressed to a rear end side of the hollow part, A diffraction grating support structure for an optical pickup, characterized in that the diffraction grating is fixed by the reaction force of a leaf spring housed in a vertical groove.