JPS63135518U

JPS63135518U -

Info

Publication number: JPS63135518U
Application number: JP2418087U
Authority: JP
Priority date: 1987-02-23
Filing date: 1987-02-23
Publication date: 1988-09-06

Description

[Brief explanation of the drawing]

第１図〜第５図はこの考案の一実施例を示し、
第１図は一部切欠き要部斜視図、第２図は要部平
断面図、第３図は第２図の一部拡大図、第４図は
要部正断面図、第５図は第４図の一部拡大図であ
る。第６図は他の実施例の一部切欠き要部斜視図
、第７図は第６図のものの一部拡大平断面図であ
る。第８図は従来の光学式ヘツドの一部切欠き要
部斜視図、第９図は第８図のものの一部拡大正断
面図である。１……筐体、２……案内孔、２ａ……ガイド溝
、３……円筒状ホルダ、４……固定ネジ、５……
板バネ。なお、各図中、同一符号は同一又は相当
部分を示す。 Figures 1 to 5 show an embodiment of this invention,
Fig. 1 is a partially cutaway perspective view of the main part, Fig. 2 is a plan sectional view of the main part, Fig. 3 is a partially enlarged view of Fig. 2, Fig. 4 is a front sectional view of the main part, and Fig. 5 is a cross-sectional view of the main part. It is a partially enlarged view of FIG. 4. FIG. 6 is a partially cutaway perspective view of a main part of another embodiment, and FIG. 7 is a partially enlarged plan sectional view of the same as shown in FIG. FIG. 8 is a partially cutaway perspective view of a conventional optical head, and FIG. 9 is a partially enlarged front sectional view of the optical head shown in FIG. 1... Housing, 2... Guide hole, 2a... Guide groove, 3... Cylindrical holder, 4... Fixing screw, 5...
leaf spring. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] (1) An optical system consisting of a plurality of optical elements including a light emitting element, a cylindrical holder to which at least one of the optical elements is fixed, and the optical system and the cylindrical holder a housing for holding the cylindrical holder, and a fixing screw for fixing the cylindrical holder to the housing,
Moreover, the cylindrical holder is fitted into a guide hole provided in the housing so as to be movable in the axial direction, and the fixing screw and the fixing screw are screwed into the housing in a direction substantially perpendicular to the axis of the guide hole. An optical head in which a plate spring is elastically inserted between a cylindrical holder and a guide groove in which the plate spring engages is provided in the housing. (2) The optical head according to claim 1, which is a utility model, and includes a U-shaped or C-shaped leaf spring.