JPS6374724U - - Google Patents

Info

Publication number
JPS6374724U
JPS6374724U JP16990386U JP16990386U JPS6374724U JP S6374724 U JPS6374724 U JP S6374724U JP 16990386 U JP16990386 U JP 16990386U JP 16990386 U JP16990386 U JP 16990386U JP S6374724 U JPS6374724 U JP S6374724U
Authority
JP
Japan
Prior art keywords
light
splitter
optical
bonding
ultraviolet rays
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
Application number
JP16990386U
Other languages
Japanese (ja)
Other versions
JPH0725770Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP16990386U priority Critical patent/JPH0725770Y2/en
Publication of JPS6374724U publication Critical patent/JPS6374724U/ja
Application granted granted Critical
Publication of JPH0725770Y2 publication Critical patent/JPH0725770Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Mounting And Adjusting Of Optical Elements (AREA)
  • Lens Barrels (AREA)
  • Optical Head (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本考案の一実施例を示す断面図、第
２図は第１図に示す本考案実施例の接着部を示す
拡大断面図、第３図は従来例に関する光分割器を
固定する部分を示す断面図、第４図は一般的な光
学薄膜の分光特性を示す特性図である。 図において、１は光分割器、３は接着剤、４は
紫外線発生装置、８，９は光学薄膜である。なお
、図中、同一符号は同一、又は相当部分を示す。 Fig. 1 is a sectional view showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view showing the adhesive part of the embodiment of the invention shown in Fig. 1, and Fig. 3 is a fixing of the light splitter in the conventional example. FIG. 4 is a characteristic diagram showing the spectral characteristics of a general optical thin film. In the figure, 1 is a light splitter, 3 is an adhesive, 4 is an ultraviolet generator, and 8 and 9 are optical thin films. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

【実用新案登録請求の範囲】 (1) 光情報記録媒体デイスクからの戻り光を、
一対の反射光と透過光とに分割するハーフミラー
光分割器を有する記録・再生装置の光ピツクアツ
プ光学系において、前記光分割器を所定の保持部
に対し、紫外線等の光により硬化する接着剤を用
いて接合する際、前記光分割器の接合保持部分に
入射光を反射光と透過光とに分割する光学薄膜を
コーテイングしないことを特徴とする光ピツクア
ツプ光学系の光分割器。 (2) 光分割器を紫外線等により硬化する接着剤
を用いて接合保持する際、紫外線等の接合のため
の光が通過する保持部分と反対側の表面部分に入
射光と反射光を分割するハーフミラー光学薄膜を
コーテイングしないことを特徴とする実用新案登
録請求の範囲第１項記載の光ピツクアツプ光学系
の光分割器。[Scope of utility model registration claims] (1) Return light from an optical information recording medium disk,
In an optical pickup optical system of a recording/reproducing device that has a half-mirror beam splitter that splits the beam into a pair of reflected light and transmitted light, the beam splitter is attached to a predetermined holding part using an adhesive that is cured by light such as ultraviolet rays. 1. A light splitter for an optical pick-up optical system, characterized in that when the light splitter is used for bonding, the bonding holding portion of the light splitter is not coated with an optical thin film that splits incident light into reflected light and transmitted light. (2) When the light splitter is bonded and held using an adhesive that is cured by ultraviolet rays, etc., the incident light and reflected light are split into the surface area opposite to the holding part through which the bonding light such as ultraviolet rays passes. A light splitter for an optical pickup optical system according to claim 1, characterized in that a half mirror optical thin film is not coated.
JP16990386U 1986-11-05 1986-11-05 Optical splitter for optical pickup optical system Expired - Lifetime JPH0725770Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16990386U JPH0725770Y2 (en) 1986-11-05 1986-11-05 Optical splitter for optical pickup optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16990386U JPH0725770Y2 (en) 1986-11-05 1986-11-05 Optical splitter for optical pickup optical system

Publications (2)

Publication Number Publication Date
JPS6374724U true JPS6374724U (en) 1988-05-18
JPH0725770Y2 JPH0725770Y2 (en) 1995-06-07

Family

ID=31104135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16990386U Expired - Lifetime JPH0725770Y2 (en) 1986-11-05 1986-11-05 Optical splitter for optical pickup optical system

Country Status (1)

Country Link
JP (1) JPH0725770Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0872300A (en) * 1994-09-06 1996-03-19 Ricoh Co Ltd Light source
WO2001065306A1 (en) * 2000-02-29 2001-09-07 Daishinku Corporation Optical device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0872300A (en) * 1994-09-06 1996-03-19 Ricoh Co Ltd Light source
WO2001065306A1 (en) * 2000-02-29 2001-09-07 Daishinku Corporation Optical device

Also Published As

Publication number Publication date
JPH0725770Y2 (en) 1995-06-07

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