JPH056263B2 - - Google Patents
Info
- Publication number
- JPH056263B2 JPH056263B2 JP59149442A JP14944284A JPH056263B2 JP H056263 B2 JPH056263 B2 JP H056263B2 JP 59149442 A JP59149442 A JP 59149442A JP 14944284 A JP14944284 A JP 14944284A JP H056263 B2 JPH056263 B2 JP H056263B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- semiconductor laser
- prism
- light beam
- lens
- 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.)
- Expired - Lifetime
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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59149442A JPS60106038A (ja) | 1984-07-20 | 1984-07-20 | 光学装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59149442A JPS60106038A (ja) | 1984-07-20 | 1984-07-20 | 光学装置 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59067649A Division JPS59229753A (ja) | 1984-04-06 | 1984-04-06 | 光情報処理装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60106038A JPS60106038A (ja) | 1985-06-11 |
| JPH056263B2 true JPH056263B2 (is") | 1993-01-26 |
Family
ID=15475202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59149442A Granted JPS60106038A (ja) | 1984-07-20 | 1984-07-20 | 光学装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60106038A (is") |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3013823B1 (fr) | 2013-11-28 | 2018-09-21 | F2A - Fabrication Aeraulique Et Acoustique | Echangeur air/air a double flux, installation de traitement d'air et methode de nettoyage d'un tel echangeur |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5224542A (en) * | 1975-08-20 | 1977-02-24 | Canon Inc | Optical system for shaping a beam |
| JPS53100844A (en) * | 1977-02-15 | 1978-09-02 | Canon Inc | Beam shaping optical system |
| JPS5455184A (en) * | 1977-10-11 | 1979-05-02 | Canon Inc | Semiconductor laser light source unit |
-
1984
- 1984-07-20 JP JP59149442A patent/JPS60106038A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60106038A (ja) | 1985-06-11 |
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