JPS5746335A - Optical parts of optical disk information reproducer - Google Patents
Optical parts of optical disk information reproducerInfo
- Publication number
- JPS5746335A JPS5746335A JP55121910A JP12191080A JPS5746335A JP S5746335 A JPS5746335 A JP S5746335A JP 55121910 A JP55121910 A JP 55121910A JP 12191080 A JP12191080 A JP 12191080A JP S5746335 A JPS5746335 A JP S5746335A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- optical
- disk information
- information reproducer
- optical disk
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To reduce the production/assembly cost, by unifying a lens part where the beam is made incident to a photodetector with a prism part where the beam is splitted into plural beams. CONSTITUTION:A plano-convex lens part 8b and a wedge-shaped prism part 12b are produced by making two parts individually and then bonding these two parts together with an optical adhesive material or by injection-molding transparent plastics. In such way, the number of assembling manhours is reduced by a half for the related parts to attain a reduction of the assembling cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55121910A JPS5746335A (en) | 1980-09-02 | 1980-09-02 | Optical parts of optical disk information reproducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55121910A JPS5746335A (en) | 1980-09-02 | 1980-09-02 | Optical parts of optical disk information reproducer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5746335A true JPS5746335A (en) | 1982-03-16 |
Family
ID=14822928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55121910A Pending JPS5746335A (en) | 1980-09-02 | 1980-09-02 | Optical parts of optical disk information reproducer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5746335A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60263341A (en) * | 1984-06-12 | 1985-12-26 | Toshiba Corp | Optical head |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5078341A (en) * | 1973-10-01 | 1975-06-26 |
-
1980
- 1980-09-02 JP JP55121910A patent/JPS5746335A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5078341A (en) * | 1973-10-01 | 1975-06-26 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60263341A (en) * | 1984-06-12 | 1985-12-26 | Toshiba Corp | Optical head |
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