JPS60140225U - optical head - Google Patents
optical headInfo
- Publication number
- JPS60140225U JPS60140225U JP2480784U JP2480784U JPS60140225U JP S60140225 U JPS60140225 U JP S60140225U JP 2480784 U JP2480784 U JP 2480784U JP 2480784 U JP2480784 U JP 2480784U JP S60140225 U JPS60140225 U JP S60140225U
- Authority
- JP
- Japan
- Prior art keywords
- laser
- optical
- optical element
- objective lens
- package
- 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.)
- Pending
Links
Landscapes
- Mounting And Adjusting Of Optical Elements (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
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
第１図乃至第３図はそれぞれこの考案に係る光学式ヘツ
、ドの一実施例を説明するためのもので、第１図及び第
２図はそれぞれ同実施例に用いる光学式ヘッドの構成を
説明するためめ構成図、第３図は同実施例の光学素子取
付は手段を説明するた 、めの構成図である。
１１・・・光学式ヘッド、１２・・・ハウジング、１３
・・・半導体レーザ、１４・・・回折格子、１５・・・
偏向ビームスプリッタ、１６・・・コリメートレンズ、
１７・・・プリズムミラー、１８・・・１／４波長板、
１９・・・対物レンズ、２０・・・ディスク、２１・・
・非点収差レンズ部、２２・・・光検出器、２３・・・
パッケージ、２３ａ・・・収納部、２３ｂ−・・取付は
板、２３ｃ、２３ｄ・・・溶接部、２４・・・取付は基
体、２４ａ・・・挿入穴、２４ｂ、２４ｃ・・・溶接部
。Figures 1 to 3 are for explaining an embodiment of the optical head and head according to this invention, respectively, and Figures 1 and 2 respectively show the configuration of the optical head used in the embodiment. Fig. 3 is a block diagram for explaining the optical element mounting means of the same embodiment. 11... Optical head, 12... Housing, 13
... Semiconductor laser, 14... Diffraction grating, 15...
Polarizing beam splitter, 16... collimating lens,
17... Prism mirror, 18... 1/4 wavelength plate,
19...Objective lens, 20...Disc, 21...
- Astigmatism lens section, 22... photodetector, 23...
Package, 23a...Storage section, 23b--Attachment is to plate, 23c, 23d...Welding section, 24... Attaching to base body, 24a...Insertion hole, 24b, 24c...Welding section.
Claims (1)
して光学的情報記録媒体に照射しその反射光を前記対物
レンズを介して光検出器で受光す、る一連の光学系シス
テムを有する光学式ヘッドに−おいて、前記光学系シス
テムに用いられる光学素子を収納したパッケージの所定
部分をレーザ溶接可能な部材で形成すると共に前記光学
素子の取付は基体の前記パッケージに形成したレーザ溶
接可能な部材と対向する部分をレーザ溶接可能な部材、
で形成し、前記取付は基体に対し前記光学素子を収納
したパッケージを位置調整してレーザ溶接により固定す
るようにしたことを特徴とする光学界ヘッド。An optical system that includes a series of optical systems that irradiates a laser beam emitted from a laser generator onto an optical information recording medium through an objective lens, and receives the reflected light by a photodetector through the objective lens. In the head, a predetermined portion of a package containing an optical element used in the optical system is formed of a laser weldable member, and the optical element is attached to the base body using a laser weldable member formed on the package. A member whose opposing part can be laser welded,
2. An optical field head, characterized in that the mounting is performed by adjusting the position of the package containing the optical element relative to the base and fixing it by laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2480784U JPS60140225U (en) | 1984-02-23 | 1984-02-23 | optical head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2480784U JPS60140225U (en) | 1984-02-23 | 1984-02-23 | optical head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60140225U true JPS60140225U (en) | 1985-09-17 |
Family
ID=30519305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2480784U Pending JPS60140225U (en) | 1984-02-23 | 1984-02-23 | optical head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60140225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02214803A (en) * | 1989-02-16 | 1990-08-27 | Tdk Corp | Polarizer device and optical device by using this polarizer device |
-
1984
- 1984-02-23 JP JP2480784U patent/JPS60140225U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02214803A (en) * | 1989-02-16 | 1990-08-27 | Tdk Corp | Polarizer device and optical device by using this polarizer device |
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