IT1062979B - Dispositivo di focalizzazione e lettura ottica comportante un siffatto dispositivo - Google Patents
Dispositivo di focalizzazione e lettura ottica comportante un siffatto dispositivoInfo
- Publication number
- IT1062979B IT1062979B IT23270/76A IT2327076A IT1062979B IT 1062979 B IT1062979 B IT 1062979B IT 23270/76 A IT23270/76 A IT 23270/76A IT 2327076 A IT2327076 A IT 2327076A IT 1062979 B IT1062979 B IT 1062979B
- Authority
- IT
- Italy
- Prior art keywords
- focusing
- creates
- optical reading
- reading device
- optical
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
Classifications
-
- 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
-
- 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
- G11B7/0909—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 by astigmatic methods
-
- 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
- G11B7/13—Optical detectors therefor
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7515433A FR2311326A2 (fr) | 1974-01-15 | 1975-05-16 | Dispositif de focalisation et lecteur optique comportant un tel dispositif |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1062979B true IT1062979B (it) | 1985-02-11 |
Family
ID=9155363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT23270/76A IT1062979B (it) | 1975-05-16 | 1976-05-14 | Dispositivo di focalizzazione e lettura ottica comportante un siffatto dispositivo |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4079247A (it) |
| JP (1) | JPS6048949B2 (it) |
| GB (1) | GB1557210A (it) |
| IT (1) | IT1062979B (it) |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55927A (en) * | 1978-06-16 | 1980-01-07 | Pioneer Video Corp | Focus servo unit of optical information reader |
| JPS5821334B2 (ja) * | 1978-12-25 | 1983-04-28 | 株式会社東芝 | 自動焦点調節装置 |
| GB2066449B (en) * | 1979-12-21 | 1984-03-21 | Rolls Royce | Monitoring distance variations |
| FR2502800A1 (fr) * | 1981-03-24 | 1982-10-01 | Thomson Csf | Senseur optique d'asservissement de focalisation |
| JPS57208642A (en) * | 1981-06-18 | 1982-12-21 | Toshiba Corp | Focus controller |
| JPS5870434A (ja) * | 1981-10-22 | 1983-04-26 | Toshiba Corp | 光学ヘツド |
| JPS58118040A (ja) * | 1982-01-07 | 1983-07-13 | Mitsubishi Electric Corp | 光学式情報記録再生装置 |
| US4441019A (en) * | 1982-01-28 | 1984-04-03 | Itek Corporation | Wavefront sensor with astigmatic optics |
| EP0096570B1 (en) * | 1982-06-05 | 1988-08-24 | Olympus Optical Co., Ltd. | An optical system focus-state detector |
| JPS59162514A (ja) * | 1983-03-08 | 1984-09-13 | Dainippon Screen Mfg Co Ltd | 画像走査記録装置における焦点調整方法 |
| JPS60183508A (ja) * | 1984-03-02 | 1985-09-19 | Nippon Kogaku Kk <Nikon> | 微小間隔検出装置 |
| JPS629537A (ja) * | 1985-07-08 | 1987-01-17 | Pioneer Electronic Corp | 光学式ピツクアツプ装置 |
| US4798469A (en) * | 1985-10-02 | 1989-01-17 | Burke Victor B | Noncontact gage system utilizing reflected light |
| US4778984A (en) * | 1985-10-16 | 1988-10-18 | Canon Denshi Kabushiki Kaisha | Apparatus for detecting focus from astigmatism |
| JP2625476B2 (ja) * | 1988-03-02 | 1997-07-02 | キヤノン株式会社 | 光学的記録再生装置 |
| JPH0677332B2 (ja) * | 1988-05-31 | 1994-09-28 | 株式会社三協精機製作所 | 光ピックアップ |
| US5036185A (en) * | 1988-12-27 | 1991-07-30 | Kabushiki Kaisha Toshiba | Optical apparatus for detecting a focusing state |
| DE69328593T2 (de) * | 1992-07-31 | 2001-01-04 | Matsushita Electric Industrial Co., Ltd. | Optisches Speichermedium |
| JP3019181B2 (ja) * | 1993-12-27 | 2000-03-13 | 日本電気株式会社 | 光ヘッドのサーボ信号検出装置 |
| DE19501884B4 (de) * | 1994-02-03 | 2005-07-21 | Carl Zeiss | Optische Anordnung |
| FR2723243B1 (fr) * | 1994-07-26 | 1996-09-06 | Thomson Csf | Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation |
| FR2739965B1 (fr) * | 1995-10-17 | 1997-11-07 | Thomson Csf | Dispositif emetteur-recepteur de lumiere et systeme de lecture optique |
| FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
| US7149173B2 (en) * | 2000-10-17 | 2006-12-12 | Thales | Medium for recording optically readable data, method for making same and optical system reproducing said data |
| FR2824905B1 (fr) * | 2001-05-15 | 2003-08-29 | Thomson Csf | Gyrometre a fibre optique |
| CN101868713A (zh) * | 2007-11-23 | 2010-10-20 | 皇家飞利浦电子股份有限公司 | 光束定形器、光学系统及其使用方法 |
| AU2013365772B2 (en) | 2012-12-19 | 2017-08-10 | Basf Se | Detector for optically detecting at least one object |
| US10353049B2 (en) | 2013-06-13 | 2019-07-16 | Basf Se | Detector for optically detecting an orientation of at least one object |
| US9989623B2 (en) | 2013-06-13 | 2018-06-05 | Basf Se | Detector for determining a longitudinal coordinate of an object via an intensity distribution of illuminated pixels |
| AU2014280334B2 (en) | 2013-06-13 | 2018-02-01 | Basf Se | Optical detector and method for manufacturing the same |
| KR102191139B1 (ko) | 2013-08-19 | 2020-12-15 | 바스프 에스이 | 광학 검출기 |
| JP6483127B2 (ja) | 2013-08-19 | 2019-03-13 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | 少なくとも１つの対象物の位置を求めるための検出器 |
| JP6660931B2 (ja) | 2014-07-08 | 2020-03-11 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | 少なくとも１つの物体の位置を決定するための検出器 |
| EP3201567A4 (en) | 2014-09-29 | 2018-06-06 | Basf Se | Detector for optically determining a position of at least one object |
| KR102497704B1 (ko) | 2014-12-09 | 2023-02-09 | 바스프 에스이 | 광 검출기 |
| KR102496245B1 (ko) | 2015-01-30 | 2023-02-06 | 트리나미엑스 게엠베하 | 하나 이상의 물체의 광학적 검출을 위한 검출기 |
| KR101692152B1 (ko) * | 2015-05-22 | 2017-01-04 | 안동대학교 산학협력단 | 비점수차를 이용한 변위 센서 및 그 변위 측정방법 |
| WO2017012986A1 (en) | 2015-07-17 | 2017-01-26 | Trinamix Gmbh | Detector for optically detecting at least one object |
| JP6755316B2 (ja) | 2015-09-14 | 2020-09-16 | トリナミクス ゲゼルシャフト ミット ベシュレンクテル ハフツング | 少なくとも１つの物体の少なくとも１つの画像を記録するカメラ |
| KR102492134B1 (ko) | 2016-07-29 | 2023-01-27 | 트리나미엑스 게엠베하 | 광학 센서 및 광학적 검출용 검출기 |
| WO2018077870A1 (en) | 2016-10-25 | 2018-05-03 | Trinamix Gmbh | Nfrared optical detector with integrated filter |
| KR102431355B1 (ko) | 2016-10-25 | 2022-08-10 | 트리나미엑스 게엠베하 | 적어도 하나의 대상체의 광학적 검출을 위한 검출기 |
| US11860292B2 (en) | 2016-11-17 | 2024-01-02 | Trinamix Gmbh | Detector and methods for authenticating at least one object |
| CN110178045B (zh) | 2016-11-17 | 2023-05-30 | 特里纳米克斯股份有限公司 | 用于光学检测至少一个对象的检测器 |
| CN110770555A (zh) | 2017-04-20 | 2020-02-07 | 特里纳米克斯股份有限公司 | 光学检测器 |
| WO2019002199A1 (en) | 2017-06-26 | 2019-01-03 | Trinamix Gmbh | DETECTOR FOR DETERMINING A POSITION OF AT LEAST ONE OBJECT |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH465250A (fr) * | 1966-10-18 | 1968-11-15 | Genevoise Instr Physique | Microscope photoélectrique |
| US3482102A (en) * | 1967-02-20 | 1969-12-02 | Conductron Corp | Coherent optical noise suppression by optical alignment of spatial filter |
| FR2116872A5 (fr) * | 1970-12-10 | 1972-07-21 | Compteurs Comp D | Perfectionnements aux dispositifs palpeurs optiques |
| JPS5339123B2 (it) * | 1973-12-28 | 1978-10-19 |
-
1976
- 1976-05-07 US US05/684,355 patent/US4079247A/en not_active Expired - Lifetime
- 1976-05-13 GB GB19844/76A patent/GB1557210A/en not_active Expired
- 1976-05-14 IT IT23270/76A patent/IT1062979B/it active
- 1976-05-17 JP JP51056426A patent/JPS6048949B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS51141651A (en) | 1976-12-06 |
| GB1557210A (en) | 1979-12-05 |
| US4079247A (en) | 1978-03-14 |
| JPS6048949B2 (ja) | 1985-10-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950428 |