FR2238209B1 - - Google Patents
Info
- Publication number
- FR2238209B1 FR2238209B1 FR7425114A FR7425114A FR2238209B1 FR 2238209 B1 FR2238209 B1 FR 2238209B1 FR 7425114 A FR7425114 A FR 7425114A FR 7425114 A FR7425114 A FR 7425114A FR 2238209 B1 FR2238209 B1 FR 2238209B1
- Authority
- FR
- France
- 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
Links
Classifications
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- 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
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
- G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/32—Holograms used as optical elements
-
- 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
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors
- H04N1/1135—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors for the main-scan only
-
- 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)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Holo Graphy (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8154873A JPS562682B2 (de) | 1973-07-18 | 1973-07-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2238209A1 FR2238209A1 (en) | 1975-02-14 |
FR2238209B1 true FR2238209B1 (de) | 1976-10-22 |
Family
ID=13749334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7425114A Granted FR2238209A1 (en) | 1973-07-18 | 1974-07-18 | Beam scanner of record carrier - uses monochromatic light beam for recording of information on carrier |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS562682B2 (de) |
DE (1) | DE2434414A1 (de) |
FR (1) | FR2238209A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS562933B2 (de) * | 1974-09-04 | 1981-01-22 | ||
JPS59202410A (ja) * | 1983-04-30 | 1984-11-16 | Toppan Printing Co Ltd | 光走査装置 |
JPS6124337U (ja) * | 1984-07-18 | 1986-02-13 | ニコルマ−ケテイング株式会社 | ハツチ・バツク型乗用車のリヤスピ−カ |
JP2551015B2 (ja) * | 1987-08-07 | 1996-11-06 | 東レ株式会社 | 特殊嵩高糸の製造方法 |
KR940007282B1 (ko) * | 1991-07-03 | 1994-08-12 | 주식회사 금성사 | 홀로그램 보정렌즈계를 갖는 레이저 프린터용 광학장치계 |
-
1973
- 1973-07-18 JP JP8154873A patent/JPS562682B2/ja not_active Expired
-
1974
- 1974-07-17 DE DE2434414A patent/DE2434414A1/de active Pending
- 1974-07-18 FR FR7425114A patent/FR2238209A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2238209A1 (en) | 1975-02-14 |
JPS562682B2 (de) | 1981-01-21 |
JPS5029048A (de) | 1975-03-24 |
DE2434414A1 (de) | 1975-02-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |