DE2624746A1 - Optisches system zum lesen eines informationstraegers mit reflektiertem licht - Google Patents
Optisches system zum lesen eines informationstraegers mit reflektiertem lichtInfo
- Publication number
- DE2624746A1 DE2624746A1 DE19762624746 DE2624746A DE2624746A1 DE 2624746 A1 DE2624746 A1 DE 2624746A1 DE 19762624746 DE19762624746 DE 19762624746 DE 2624746 A DE2624746 A DE 2624746A DE 2624746 A1 DE2624746 A1 DE 2624746A1
- Authority
- DE
- Germany
- Prior art keywords
- reading
- optical
- optical system
- track
- 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.)
- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 title claims description 69
- 230000005855 radiation Effects 0.000 claims description 26
- 210000001747 pupil Anatomy 0.000 claims description 11
- 238000005286 illumination Methods 0.000 claims description 9
- 210000003128 head Anatomy 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000011049 pearl Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- G11B7/0901—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 track following 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
- G02B27/10—Beam splitting or combining systems
- G02B27/12—Beam splitting or combining systems operating by refraction only
- G02B27/126—The splitting element being a prism or prismatic array, including systems based on total internal reflection
-
- 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)
- General Physics & Mathematics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7517262A FR2313716A1 (fr) | 1975-06-03 | 1975-06-03 | Systeme optique de lecture par reflexion d'un support d'information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2624746A1 true DE2624746A1 (de) | 1976-12-16 |
Family
ID=9156000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19762624746 Withdrawn DE2624746A1 (de) | 1975-06-03 | 1976-06-02 | Optisches system zum lesen eines informationstraegers mit reflektiertem licht |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4143402A (enExample) |
| JP (1) | JPS51150303A (enExample) |
| DE (1) | DE2624746A1 (enExample) |
| FR (1) | FR2313716A1 (enExample) |
| NL (1) | NL7605943A (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2810566A1 (de) * | 1977-03-23 | 1978-09-28 | Philips Nv | Vorrichtung zum auslesen eines optischen strahlungsreflektierenden aufzeichnungstraegers |
| DE2937427A1 (de) * | 1978-09-22 | 1980-04-10 | Philips Nv | Vorrichtung zum auslesen eines optischen aufzeichnungstraegers mit einer strahlungsreflektierenden informationsstruktur |
| DE3134100A1 (de) * | 1980-08-29 | 1982-06-09 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | "optoelektronisches fokussier- und nachfuehr-detektionssysytem" |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6038771B2 (ja) * | 1978-06-19 | 1985-09-03 | パイオニア株式会社 | 光学式情報読取装置のサ−ボ装置 |
| GB2046480A (en) * | 1979-03-27 | 1980-11-12 | Tokyo Shibaura Electric Co | Tracking servo and playback system for video disc |
| FR2460523A1 (fr) * | 1979-06-29 | 1981-01-23 | Thomson Csf | Tete de lecture optique a source laser a semi-conducteur et dispositif de lecture par reflexion d'un support d'information comportant une telle tete optique |
| JPS57108811A (en) * | 1980-12-26 | 1982-07-07 | Hitachi Ltd | Optical focus position detector |
| FR2502800A1 (fr) * | 1981-03-24 | 1982-10-01 | Thomson Csf | Senseur optique d'asservissement de focalisation |
| US4504938A (en) * | 1981-04-07 | 1985-03-12 | Victor Company Of Japan, Limited | Device for feedback controlling focus of an optical system in an information recording/reproducing apparatus |
| WO1983001311A1 (en) * | 1981-10-08 | 1983-04-14 | Chapman, John, Gerald | Improvements relating to light delivery for tumour treatment |
| US4441175A (en) * | 1982-01-25 | 1984-04-03 | Magnetic Peripherals Inc. | Partial beam focus sensing in an optical recording system |
| JPS59198542A (ja) * | 1983-04-26 | 1984-11-10 | Sony Corp | 光学デイスクプレ−ヤ |
| NL8403034A (nl) * | 1984-10-05 | 1986-05-01 | Philips Nv | Opto-elektronisch fokusfout-detektiestelsel. |
| EP0225564A3 (en) * | 1985-11-30 | 1988-07-06 | Kabushiki Kaisha Toshiba | Optical head |
| US4794585A (en) * | 1986-05-06 | 1988-12-27 | Lee Wai Hon | Optical head having a hologram lens and polarizers for use with magneto-optic medium |
| US4905216A (en) * | 1986-12-04 | 1990-02-27 | Pencom International Corporation | Method for constructing an optical head by varying a hologram pattern |
| US4868377A (en) * | 1987-02-04 | 1989-09-19 | Asahi Optical Co., Ltd. | Optical pickup for reading optical disk information provided with error detecting means by knife edge test |
| JPH0777048B2 (ja) * | 1987-06-26 | 1995-08-16 | 三菱電機株式会社 | 記録媒体駆動装置 |
| JPH077510B2 (ja) * | 1988-05-31 | 1995-01-30 | アルプス電気株式会社 | 光学式ピックアップにおけるビームスプリッタの固定構造 |
| US5049732A (en) * | 1988-10-21 | 1991-09-17 | Sharp Kabushiki Kaisha | Optical pickup device with diffraction device |
| FR2655497A1 (fr) * | 1989-12-01 | 1991-06-07 | Telecommunications Sa | Systeme de transmission de messages. |
| JP2644110B2 (ja) * | 1991-07-05 | 1997-08-25 | 三菱電機株式会社 | 光記録再生装置 |
| 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 |
| US5852516A (en) * | 1996-03-04 | 1998-12-22 | Raytheon Ti Systems, Inc. | Dual purpose infrared lens assembly using diffractive optics |
| 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 |
| SE520605C2 (sv) * | 2001-06-29 | 2003-07-29 | Flir Systems Ab | Optiskt system innefattande en detektor och en bländare med decentreringsfunktion |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3596101A (en) * | 1969-11-05 | 1971-07-27 | Canon Kk | Optical systems for automatic focusing apparatus |
| AR205243A1 (es) * | 1972-05-11 | 1976-04-21 | Philips Nv | Aparato para la lectura de un portador de grabacion reflector plano |
| FR2235448B1 (enExample) * | 1973-06-29 | 1976-05-07 | Thomson Brandt | |
| NL7414776A (nl) * | 1974-11-13 | 1976-05-17 | Philips Nv | Inrichting voor het uitlezen van een registra- tiedrager met een optische informatiestruktuur. |
-
1975
- 1975-06-03 FR FR7517262A patent/FR2313716A1/fr active Granted
-
1976
- 1976-05-28 US US05/691,215 patent/US4143402A/en not_active Expired - Lifetime
- 1976-06-02 NL NL7605943A patent/NL7605943A/xx not_active Application Discontinuation
- 1976-06-02 DE DE19762624746 patent/DE2624746A1/de not_active Withdrawn
- 1976-06-03 JP JP51065093A patent/JPS51150303A/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2810566A1 (de) * | 1977-03-23 | 1978-09-28 | Philips Nv | Vorrichtung zum auslesen eines optischen strahlungsreflektierenden aufzeichnungstraegers |
| DE2937427A1 (de) * | 1978-09-22 | 1980-04-10 | Philips Nv | Vorrichtung zum auslesen eines optischen aufzeichnungstraegers mit einer strahlungsreflektierenden informationsstruktur |
| DE3134100A1 (de) * | 1980-08-29 | 1982-06-09 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | "optoelektronisches fokussier- und nachfuehr-detektionssysytem" |
Also Published As
| Publication number | Publication date |
|---|---|
| US4143402A (en) | 1979-03-06 |
| FR2313716A1 (fr) | 1976-12-31 |
| JPS51150303A (en) | 1976-12-23 |
| NL7605943A (nl) | 1976-12-07 |
| FR2313716B1 (enExample) | 1982-09-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |