JPS4950952A - - Google Patents
Info
- Publication number
- JPS4950952A JPS4950952A JP48051236A JP5123673A JPS4950952A JP S4950952 A JPS4950952 A JP S4950952A JP 48051236 A JP48051236 A JP 48051236A JP 5123673 A JP5123673 A JP 5123673A JP S4950952 A JPS4950952 A JP S4950952A
- Authority
- JP
- Japan
- 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.)
- Granted
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
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/40—Optical focusing aids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
- Optical Head (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7206376A NL7206376A (US20110158925A1-20110630-C00042.png) | 1972-05-11 | 1972-05-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4950952A true JPS4950952A (US20110158925A1-20110630-C00042.png) | 1974-05-17 |
| JPS5548366B2 JPS5548366B2 (US20110158925A1-20110630-C00042.png) | 1980-12-05 |
Family
ID=19816019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5123673A Expired JPS5548366B2 (US20110158925A1-20110630-C00042.png) | 1972-05-11 | 1973-05-10 |
Country Status (15)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769535A (en) * | 1980-10-15 | 1982-04-28 | Hitachi Ltd | Optical information processor |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2512384C2 (de) * | 1975-03-21 | 1986-07-31 | Geometric Data Corp., Wayne, Pa. | Feinfokussiereinrichtung für das Objektiv eines optischen Instrumentes |
| FR2321711A1 (fr) * | 1975-08-19 | 1977-03-18 | Thomson Brandt | Dispositif optique a mise au point automatique et lecteur optique comportant un tel dispositif |
| FR2330027A1 (fr) * | 1975-10-28 | 1977-05-27 | Thomson Brandt | Dispositif de focalisation a vergence variable et lecteur optique comportant un tel dispositif |
| NL7600479A (nl) * | 1976-01-19 | 1977-07-21 | Philips Nv | Automatisch optisch focusseersysteem. |
| US4918678A (en) * | 1977-12-12 | 1990-04-17 | Dolby Ray Milton | Disc reproducing system for compensating mechanical imperfections |
| FR2425085A1 (fr) * | 1978-05-05 | 1979-11-30 | Quantel Sa | Objectif a longueur focale variable |
| DE2915313A1 (de) * | 1979-04-14 | 1980-10-23 | Ibm Deutschland | Piezoelektrische antriebsanordnung, insbesondere fuer fokussiersysteme |
| US4445209A (en) * | 1979-08-27 | 1984-04-24 | Discovision Associates | Dithered focusing systems |
| DE3238108A1 (de) * | 1982-10-14 | 1984-04-19 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Adaptives optisches system |
| GB8827297D0 (en) * | 1988-11-23 | 1988-12-29 | Sira Ltd | Inspection apparatus |
| JPH03194526A (ja) * | 1989-12-25 | 1991-08-26 | Olympus Optical Co Ltd | 実像式ファインダー光学系 |
| US5621568A (en) * | 1991-05-17 | 1997-04-15 | Asahi Kogaku Kogyo Kabushiki Kaisha | Device for adjusting the diopter setting of a finder assembly |
| US6061175A (en) * | 1998-06-03 | 2000-05-09 | Watters; George M. | Multi-focal-ratio reflector telescopes |
| CN1295696C (zh) * | 2004-12-09 | 2007-01-17 | 中国科学院上海光学精密机械研究所 | 位相型横向超分辨共焦系统 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3514776A (en) * | 1968-05-27 | 1970-05-26 | United Aircraft Corp | Mirror device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE16757E (en) * | 1922-10-31 | 1927-10-04 | knight | |
| US2410502A (en) * | 1940-04-06 | 1946-11-05 | Bendix Aviat Corp | Aircraft control apparatus |
| US3073215A (en) * | 1959-07-06 | 1963-01-15 | Cons Electrodynamics Corp | Optical recording system |
-
1972
- 1972-05-11 NL NL7206376A patent/NL7206376A/xx unknown
-
1973
- 1973-03-28 US US345645A patent/US3876875A/en not_active Expired - Lifetime
- 1973-03-30 ZA ZA732198A patent/ZA732198B/xx unknown
- 1973-05-08 AT AT404673A patent/AT323819B/de not_active IP Right Cessation
- 1973-05-08 IT IT68299/73A patent/IT985878B/it active
- 1973-05-08 CH CH653173A patent/CH565381A5/xx not_active IP Right Cessation
- 1973-05-08 GB GB2190373A patent/GB1434060A/en not_active Expired
- 1973-05-08 SE SE7306437A patent/SE391403B/xx unknown
- 1973-05-08 DK DK252873AA patent/DK134208B/da unknown
- 1973-05-08 CA CA170,626A patent/CA984190A/en not_active Expired
- 1973-05-09 BE BE130948A patent/BE799334A/xx unknown
- 1973-05-09 ES ES414578A patent/ES414578A1/es not_active Expired
- 1973-05-09 FR FR7316689A patent/FR2184344A5/fr not_active Expired
- 1973-05-10 DE DE2323586A patent/DE2323586C3/de not_active Expired
- 1973-05-10 JP JP5123673A patent/JPS5548366B2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3514776A (en) * | 1968-05-27 | 1970-05-26 | United Aircraft Corp | Mirror device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5769535A (en) * | 1980-10-15 | 1982-04-28 | Hitachi Ltd | Optical information processor |
Also Published As
| Publication number | Publication date |
|---|---|
| CA984190A (en) | 1976-02-24 |
| DE2323586B2 (US20110158925A1-20110630-C00042.png) | 1979-08-30 |
| US3876875A (en) | 1975-04-08 |
| AU5529873A (en) | 1974-11-07 |
| DE2323586A1 (de) | 1973-11-22 |
| AT323819B (de) | 1975-07-25 |
| SE391403B (sv) | 1977-02-14 |
| BE799334A (fr) | 1973-11-09 |
| FR2184344A5 (US20110158925A1-20110630-C00042.png) | 1973-12-21 |
| ES414578A1 (es) | 1976-06-01 |
| NL7206376A (US20110158925A1-20110630-C00042.png) | 1973-11-13 |
| DE2323586C3 (de) | 1980-05-14 |
| CH565381A5 (US20110158925A1-20110630-C00042.png) | 1975-08-15 |
| ZA732198B (en) | 1974-11-27 |
| GB1434060A (en) | 1976-04-28 |
| IT985878B (it) | 1974-12-20 |
| DK134208C (US20110158925A1-20110630-C00042.png) | 1977-02-28 |
| DK134208B (da) | 1976-09-27 |
| JPS5548366B2 (US20110158925A1-20110630-C00042.png) | 1980-12-05 |
