IT1008861B - Dispositivo a specchio mobile e re lativo meccanismo di azionamento - Google Patents
Dispositivo a specchio mobile e re lativo meccanismo di azionamentoInfo
- Publication number
- IT1008861B IT1008861B IT48442/74A IT4844274A IT1008861B IT 1008861 B IT1008861 B IT 1008861B IT 48442/74 A IT48442/74 A IT 48442/74A IT 4844274 A IT4844274 A IT 4844274A IT 1008861 B IT1008861 B IT 1008861B
- Authority
- IT
- Italy
- Prior art keywords
- lative
- drive mechanism
- mirror device
- movable mirror
- movable
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—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
- G11B7/09—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
- G11B7/0925—Electromechanical actuators for lens positioning
-
- 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0929—Electromechanical actuators for lens positioning for tracking 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
- G11B7/08—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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0937—Piezoelectric actuators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Optical Elements Other Than Lenses (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33355973A | 1973-02-20 | 1973-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1008861B true IT1008861B (it) | 1976-11-30 |
Family
ID=23303308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT48442/74A IT1008861B (it) | 1973-02-20 | 1974-02-19 | Dispositivo a specchio mobile e re lativo meccanismo di azionamento |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3794410A (it) |
| JP (1) | JPS5416418B2 (it) |
| CA (1) | CA984191A (it) |
| DE (1) | DE2403422C3 (it) |
| FR (1) | FR2218573B1 (it) |
| GB (1) | GB1450556A (it) |
| IT (1) | IT1008861B (it) |
| NL (1) | NL161588C (it) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3981566A (en) * | 1974-09-23 | 1976-09-21 | Eastman Kodak Company | Lever-action mountings for beam steerer mirrors |
| JPS5194245A (it) * | 1975-02-15 | 1976-08-18 | ||
| NL174608C (nl) * | 1975-10-20 | 1984-07-02 | Philips Nv | Werkwijze voor de vervaardiging van een zwenkspiegelinrichting en een zwenkspiegelinrichting vervaardigd volgens deze werkwijze. |
| US4169276A (en) * | 1977-10-17 | 1979-09-25 | Ampex Corporation | Drive circuit for controlling a movable magnetic head |
| JPS5492307A (en) * | 1977-12-29 | 1979-07-21 | Sony Corp | Driving circuit of electrostrictive converter |
| JPS5524676A (en) * | 1978-08-09 | 1980-02-21 | Sanyo Electric Co Ltd | Infrared thermometer |
| US4369348A (en) * | 1979-01-04 | 1983-01-18 | United Technologies Corporation | Method and apparatus for high frequency optical beam oscillation |
| US4261636A (en) * | 1979-01-04 | 1981-04-14 | United Technologies Corporation | Apparatus for high frequency optical beam oscillation |
| JPS55111917A (en) * | 1979-02-22 | 1980-08-29 | Toshiba Corp | Reciprocating photo scanner |
| US4385373A (en) * | 1980-11-10 | 1983-05-24 | Eastman Kodak Company | Device for focus and alignment control in optical recording and/or playback apparatus |
| US4625137A (en) * | 1983-12-09 | 1986-11-25 | Nippon Telegraph & Telephone Public Corp. | Piezoelectric actuator using bimorph element |
| US4553061A (en) * | 1984-06-11 | 1985-11-12 | General Electric Company | Piezoelectric bimorph driven direct current latching relay |
| USRE33691E (en) * | 1984-12-21 | 1991-09-17 | General Electric Company | Piezoelectric ceramic switching devices and systems and method of making the same |
| US5374817A (en) * | 1988-05-11 | 1994-12-20 | Symbol Technologies, Inc. | Pre-objective scanner with flexible optical support |
| US5514861A (en) * | 1988-05-11 | 1996-05-07 | Symbol Technologies, Inc. | Computer and/or scanner system mounted on a glove |
| US5410140A (en) * | 1988-05-11 | 1995-04-25 | Symbol Technologies, Inc. | Mirrorless ring mounted miniature optical scanner |
| US5170277A (en) * | 1988-05-11 | 1992-12-08 | Symbol Technologies, Inc. | Piezoelectric beam deflector |
| US5422469A (en) * | 1989-10-30 | 1995-06-06 | Symbol Technologies, Inc. | Fiber optic barcode readers using purely mechanical scanner oscillation |
| US5404001A (en) * | 1992-10-08 | 1995-04-04 | Bard; Simon | Fiber optic barcode reader |
| IT1242638B (it) * | 1990-11-15 | 1994-05-16 | Hal 9000 Informatica Srl | Deflettore alternativo di luce laser |
| JP3219123B2 (ja) * | 1993-11-29 | 2001-10-15 | 株式会社デンソー | ２次元光走査装置及びそれを用いたバーコード読取装置 |
| US5978329A (en) * | 1995-06-07 | 1999-11-02 | Discovision Associates | Technique for closed loop servo operation in optical disc tracking control |
| EP0777218B1 (en) * | 1995-12-06 | 2001-05-16 | Discovision Associates | Apparatus and method for focus control |
| US5689485A (en) | 1996-04-01 | 1997-11-18 | Discovision Associates | Tracking control apparatus and method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1438974A (en) * | 1920-11-13 | 1922-12-19 | Western Electric Co | Piezo-electrical voltage indicator |
| US1789521A (en) * | 1928-04-10 | 1931-01-20 | Feingold Samuel | Television system |
| US3108161A (en) * | 1958-08-06 | 1963-10-22 | Rca Corp | Stereophonic phonograph pickup |
| US3544201A (en) * | 1968-01-02 | 1970-12-01 | Gen Telephone & Elect | Optical beam deflector |
| FR1578046A (it) * | 1968-05-10 | 1969-08-14 |
-
1973
- 1973-02-20 US US00333559A patent/US3794410A/en not_active Expired - Lifetime
- 1973-12-10 GB GB5703373A patent/GB1450556A/en not_active Expired
- 1973-12-18 CA CA148,421A patent/CA984191A/en not_active Expired
-
1974
- 1974-01-17 FR FR7401598A patent/FR2218573B1/fr not_active Expired
- 1974-01-24 DE DE2403422A patent/DE2403422C3/de not_active Expired
- 1974-02-15 JP JP1773474A patent/JPS5416418B2/ja not_active Expired
- 1974-02-18 NL NL7402219.A patent/NL161588C/xx not_active IP Right Cessation
- 1974-02-19 IT IT48442/74A patent/IT1008861B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| NL161588C (nl) | 1980-02-15 |
| DE2403422B2 (de) | 1979-09-20 |
| NL7402219A (it) | 1974-08-22 |
| DE2403422A1 (de) | 1974-08-29 |
| JPS5416418B2 (it) | 1979-06-22 |
| US3794410A (en) | 1974-02-26 |
| GB1450556A (en) | 1976-09-22 |
| DE2403422C3 (de) | 1980-06-12 |
| JPS49115557A (it) | 1974-11-05 |
| CA984191A (en) | 1976-02-24 |
| FR2218573B1 (it) | 1976-06-25 |
| FR2218573A1 (it) | 1974-09-13 |
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