JPS6435735A - Optical head in optical disk recording and reproducing device - Google Patents
Optical head in optical disk recording and reproducing deviceInfo
- Publication number
- JPS6435735A JPS6435735A JP62190380A JP19038087A JPS6435735A JP S6435735 A JPS6435735 A JP S6435735A JP 62190380 A JP62190380 A JP 62190380A JP 19038087 A JP19038087 A JP 19038087A JP S6435735 A JPS6435735 A JP S6435735A
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical disk
- optical system
- mobile
- optical
- 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
- Optical Head (AREA)
Abstract
PURPOSE:To reduce a weight at the time of movement and to shorten an access time by constitution a mobile optical system only of an objective lens and a bent mirror. CONSTITUTION:The mobile optical system 60 is formed of the objective lens 62 for injecting a light to an optical disk 100 and the bent mirror 61 and a fixed optical system 40 is constituted of a laser light source 41, a light separating means 42 for separating an injection light from this laser light source 41 and a reflected light from the optical disk, a focussing driving means 45 for controlling a focussing to the optical disk 100 of the injection light, a mirror 46 for injecting light beam to the moving optical system 60 side and rotating interlockingly with the movement of a mobile member and a photodetector 48 for receiving the reflected light from the optical disk 100 obtained by the light separating means. Thereby, the weight of the mobile optical system 60 is reduced and the access time for recording and reproducing can be shortened.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190380A JPS6435735A (en) | 1987-07-31 | 1987-07-31 | Optical head in optical disk recording and reproducing device |
US07/226,435 US4959824A (en) | 1987-07-31 | 1988-07-29 | Optical information record/pickup head assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62190380A JPS6435735A (en) | 1987-07-31 | 1987-07-31 | Optical head in optical disk recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6435735A true JPS6435735A (en) | 1989-02-06 |
Family
ID=16257208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62190380A Pending JPS6435735A (en) | 1987-07-31 | 1987-07-31 | Optical head in optical disk recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6435735A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0341820A2 (en) * | 1988-05-12 | 1989-11-15 | Digital Equipment Corporation | A low mass optical head system |
-
1987
- 1987-07-31 JP JP62190380A patent/JPS6435735A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0341820A2 (en) * | 1988-05-12 | 1989-11-15 | Digital Equipment Corporation | A low mass optical head system |
EP0341820A3 (en) * | 1988-05-12 | 1991-09-25 | Digital Equipment Corporation | A low mass optical head system |
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