DE3880353D1 - Holographische objektivspiegel fuer optische speicherung. - Google Patents
Holographische objektivspiegel fuer optische speicherung.Info
- Publication number
- DE3880353D1 DE3880353D1 DE8888101467T DE3880353T DE3880353D1 DE 3880353 D1 DE3880353 D1 DE 3880353D1 DE 8888101467 T DE8888101467 T DE 8888101467T DE 3880353 T DE3880353 T DE 3880353T DE 3880353 D1 DE3880353 D1 DE 3880353D1
- Authority
- DE
- Germany
- Prior art keywords
- holographical
- optical storage
- lens mirror
- mirror
- 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 - Fee Related
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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1362—Mirrors
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/025,691 US4784447A (en) | 1987-03-13 | 1987-03-13 | Holographic objective mirror for optical storage |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3880353D1 true DE3880353D1 (de) | 1993-05-27 |
DE3880353T2 DE3880353T2 (de) | 1993-10-28 |
Family
ID=21827528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE88101467T Expired - Fee Related DE3880353T2 (de) | 1987-03-13 | 1988-02-02 | Holographische Objektivspiegel für optische Speicherung. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4784447A (de) |
EP (1) | EP0281756B1 (de) |
JP (1) | JPS63229630A (de) |
DE (1) | DE3880353T2 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8800057A (nl) * | 1988-01-11 | 1989-08-01 | Philips Nv | Optische aftastinrichting. |
JPH06103543B2 (ja) * | 1988-12-31 | 1994-12-14 | 三星電子株式会社 | レーザピックアップ |
FR2642927B1 (fr) * | 1989-02-07 | 1993-12-24 | Thomson Csf | Dispositif de visualisation a haute definition, couleur |
CA2017229A1 (en) * | 1989-06-30 | 1990-12-31 | James A. Cox | Binary optical element for an optical disk read/write head |
JPH0460933A (ja) * | 1990-06-26 | 1992-02-26 | Matsushita Electric Ind Co Ltd | 光ピックアップヘッド装置 |
US5202875A (en) * | 1991-06-04 | 1993-04-13 | International Business Machines Corporation | Multiple data surface optical data storage system |
CA2079620A1 (en) * | 1991-10-25 | 1993-04-26 | Roeland M. T. Hekker | Holographic elements for an optical recording system |
JPH07182687A (ja) * | 1993-12-24 | 1995-07-21 | Sharp Corp | 光ピックアップ |
US5815936A (en) * | 1994-05-17 | 1998-10-06 | Environmental Research Institute Of Michigan | Detachable hologram assembly and windage/elevation adjuster for a compact holographic sight |
US5483362A (en) * | 1994-05-17 | 1996-01-09 | Environmental Research Institute Of Michigan | Compact holographic sight |
KR100508418B1 (ko) * | 1997-11-06 | 2005-11-24 | 후지제롯쿠스 가부시끼가이샤 | 광헤드및광디스크장치 |
US6154326A (en) | 1998-03-19 | 2000-11-28 | Fuji Xerox Co., Ltd. | Optical head, disk apparatus, method for manufacturing optical head, and optical element |
US6687196B1 (en) | 1998-05-08 | 2004-02-03 | Fuji Xerox Co., Lt.D. | Method and apparatus for implementing high density recording on a recording medium and a method of manufacturing same |
GB2352829A (en) * | 1999-05-10 | 2001-02-07 | Desmond Gibson | Infrared diffractive focusing mirror |
JP2005038525A (ja) * | 2003-07-16 | 2005-02-10 | Sankyo Seiki Mfg Co Ltd | 光記録ディスク装置およびその製造方法 |
CN101650493A (zh) * | 2008-08-13 | 2010-02-17 | 深圳Tcl新技术有限公司 | 提供背光照明的方法、背光照明系统及显示系统 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2337015C2 (de) * | 1973-07-20 | 1983-07-14 | Robert Bosch Gmbh, 7000 Stuttgart | Vorrichtung zur optischen Abtastung einer um eine vertikale Rotationsachse sich drehenden Platte |
US4203652A (en) * | 1977-02-15 | 1980-05-20 | Canon Kabushiki Kaisha | Beam shaping optical system |
US4440839A (en) * | 1981-03-18 | 1984-04-03 | United Technologies Corporation | Method of forming laser diffraction grating for beam sampling device |
JPS59113533A (ja) * | 1982-12-20 | 1984-06-30 | Konishiroku Photo Ind Co Ltd | 光学式情報読取装置 |
US4497534A (en) * | 1983-02-28 | 1985-02-05 | International Business Machines Corporation | Holographic optical head |
-
1987
- 1987-03-13 US US07/025,691 patent/US4784447A/en not_active Expired - Fee Related
- 1987-12-15 JP JP62315455A patent/JPS63229630A/ja active Pending
-
1988
- 1988-02-02 DE DE88101467T patent/DE3880353T2/de not_active Expired - Fee Related
- 1988-02-02 EP EP88101467A patent/EP0281756B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63229630A (ja) | 1988-09-26 |
DE3880353T2 (de) | 1993-10-28 |
EP0281756A2 (de) | 1988-09-14 |
EP0281756B1 (de) | 1993-04-21 |
US4784447A (en) | 1988-11-15 |
EP0281756A3 (en) | 1990-10-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |