FR2293030B1 - - Google Patents
Info
- Publication number
- FR2293030B1 FR2293030B1 FR7536505A FR7536505A FR2293030B1 FR 2293030 B1 FR2293030 B1 FR 2293030B1 FR 7536505 A FR7536505 A FR 7536505A FR 7536505 A FR7536505 A FR 7536505A FR 2293030 B1 FR2293030 B1 FR 2293030B1
- Authority
- FR
- France
- 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
Links
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
- G02B27/10—Beam splitting or combining systems
- G02B27/14—Beam splitting or combining systems operating by reflection only
- G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
-
- 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
-
- 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)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Facsimile Scanning Arrangements (AREA)
- Sowing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7415574,A NL181693C (nl) | 1974-11-29 | 1974-11-29 | Inrichting voor het langs optische weg uitlezen van een stralingsreflekterende registratiedrager. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2293030A1 FR2293030A1 (fr) | 1976-06-25 |
| FR2293030B1 true FR2293030B1 (US08124630-20120228-C00102.png) | 1982-02-26 |
Family
ID=19822558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7536505A Granted FR2293030A1 (fr) | 1974-11-29 | 1975-11-28 | Dispositif pour lire par voie optique un porteur d'enregistrement reflechissant du rayonnement |
Country Status (20)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2325987A1 (fr) * | 1975-09-29 | 1977-04-22 | Thomson Brandt | Dispositif de lecture optique d'un enregistrement |
| NL7600479A (nl) * | 1976-01-19 | 1977-07-21 | Philips Nv | Automatisch optisch focusseersysteem. |
| CA1091966A (en) * | 1976-10-15 | 1980-12-23 | Chiaki Kojima | Apparatus for reading signals recorded on a record carrier |
| JPS6032175B2 (ja) * | 1977-05-18 | 1985-07-26 | バスフ アクチェン ゲゼルシャフト | 版木及びレリ−フ版木を製造するために改良された光重合可能な物質 |
| NL8005633A (nl) * | 1980-10-13 | 1982-05-03 | Philips Nv | Inrichting voor het uitlezen en/of inschrijven van een optisch uitleesbare informatiestruktuur. |
| US4466087A (en) * | 1981-01-08 | 1984-08-14 | Xerox Corporation | Optical memory system for a reading/writing, verifying and tracking module |
| JPS58171731A (ja) * | 1983-02-21 | 1983-10-08 | Mitsubishi Electric Corp | デイスク再生装置 |
| US4678288A (en) * | 1984-04-27 | 1987-07-07 | Spectra-Physics, Inc. | Trifocal lens for a laser instrument |
| JPS6332739A (ja) * | 1987-05-29 | 1988-02-12 | Mitsubishi Electric Corp | ディスク再生装置 |
| JPS6332738A (ja) * | 1987-05-29 | 1988-02-12 | Mitsubishi Electric Corp | ディスク再生装置 |
| US4786798A (en) * | 1987-06-18 | 1988-11-22 | Spectra-Physics Inc. | Beam forming and collection lens assembly for laser scanner system |
| JPH06506788A (ja) * | 1992-01-17 | 1994-07-28 | ウエルチ アリン，インコーポレイティド | 光源と光検出器とそれらを用いた装置 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL160138C (nl) * | 1972-05-11 | 1979-09-17 | Philips Nv | Inrichting voor het uitlezen van een vlakke registratie- drager. |
| NL169668C (nl) * | 1972-09-02 | 1982-08-02 | Philips Nv | Inrichting voor het uitlezen van een schijfvormige informatiedrager. |
| FR2222665B1 (US08124630-20120228-C00102.png) * | 1973-03-21 | 1975-10-31 | Thomson Brandt |
-
1974
- 1974-11-29 NL NLAANVRAGE7415574,A patent/NL181693C/xx not_active IP Right Cessation
-
1975
- 1975-02-11 US US05/548,998 patent/US3991275A/en not_active Expired - Lifetime
- 1975-11-10 ZA ZA757054A patent/ZA757054B/xx unknown
- 1975-11-20 AR AR261295A patent/AR210100A1/es active
- 1975-11-22 DE DE2552391A patent/DE2552391C3/de not_active Expired
- 1975-11-26 NO NO753991A patent/NO753991L/no unknown
- 1975-11-26 JP JP14154975A patent/JPS5627932B2/ja not_active Expired
- 1975-11-26 AT AT898175A patent/AT347148B/de not_active IP Right Cessation
- 1975-11-26 CA CA240,536A patent/CA1065059A/en not_active Expired
- 1975-11-26 IT IT69919/75A patent/IT1052684B/it active
- 1975-11-26 GB GB48573/75A patent/GB1519819A/en not_active Expired
- 1975-11-26 DK DK534075AA patent/DK137253B/da unknown
- 1975-11-26 SE SE7513269A patent/SE410910B/xx not_active IP Right Cessation
- 1975-11-26 CH CH1532575A patent/CH600478A5/xx not_active IP Right Cessation
- 1975-11-26 AU AU86954/75A patent/AU500611B2/en not_active Expired
- 1975-11-26 PL PL1975184989A patent/PL107136B1/pl unknown
- 1975-11-26 BR BR7507847*A patent/BR7507847A/pt unknown
- 1975-11-27 BE BE162262A patent/BE836047A/xx not_active IP Right Cessation
- 1975-11-28 ES ES443061A patent/ES443061A1/es not_active Expired
- 1975-11-28 FR FR7536505A patent/FR2293030A1/fr active Granted
Also Published As
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |