CA1065059A - Apparatus for optically reading a radiation-reflecting record carrier - Google Patents
Apparatus for optically reading a radiation-reflecting record carrierInfo
- Publication number
- CA1065059A CA1065059A CA240,536A CA240536A CA1065059A CA 1065059 A CA1065059 A CA 1065059A CA 240536 A CA240536 A CA 240536A CA 1065059 A CA1065059 A CA 1065059A
- Authority
- CA
- Canada
- Prior art keywords
- radiation
- record carrier
- read
- mirror
- divider
- 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.)
- 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 (1)
| Publication Number | Publication Date |
|---|---|
| CA1065059A true CA1065059A (en) | 1979-10-23 |
Family
ID=19822558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA240,536A Expired CA1065059A (en) | 1974-11-29 | 1975-11-26 | Apparatus for optically reading a radiation-reflecting record carrier |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US3991275A ( ) |
| JP (1) | JPS5627932B2 ( ) |
| AR (1) | AR210100A1 ( ) |
| AT (1) | AT347148B ( ) |
| AU (1) | AU500611B2 ( ) |
| BE (1) | BE836047A ( ) |
| BR (1) | BR7507847A ( ) |
| CA (1) | CA1065059A ( ) |
| CH (1) | CH600478A5 ( ) |
| DE (1) | DE2552391C3 ( ) |
| DK (1) | DK137253B ( ) |
| ES (1) | ES443061A1 ( ) |
| FR (1) | FR2293030A1 ( ) |
| GB (1) | GB1519819A ( ) |
| IT (1) | IT1052684B ( ) |
| NL (1) | NL181693C ( ) |
| NO (1) | NO753991L ( ) |
| PL (1) | PL107136B1 ( ) |
| SE (1) | SE410910B ( ) |
| ZA (1) | ZA757054B ( ) |
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 ( ) * | 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
| Publication number | Publication date |
|---|---|
| ES443061A1 (es) | 1977-04-16 |
| AR210100A1 (es) | 1977-06-30 |
| DK137253B (da) | 1978-02-06 |
| NL181693C (nl) | 1987-10-01 |
| US3991275A (en) | 1976-11-09 |
| AT347148B (de) | 1978-12-11 |
| BR7507847A (pt) | 1976-08-10 |
| DK137253C ( ) | 1978-07-10 |
| JPS5177020A ( ) | 1976-07-03 |
| NL7415574A (nl) | 1976-06-01 |
| FR2293030B1 ( ) | 1982-02-26 |
| DE2552391A1 (de) | 1976-08-12 |
| DE2552391C3 (de) | 1980-07-31 |
| AU8695475A (en) | 1977-06-02 |
| CH600478A5 ( ) | 1978-06-15 |
| SE410910B (sv) | 1979-11-12 |
| ATA898175A (de) | 1978-04-15 |
| DE2552391B2 (de) | 1979-11-15 |
| JPS5627932B2 ( ) | 1981-06-27 |
| FR2293030A1 (fr) | 1976-06-25 |
| GB1519819A (en) | 1978-08-02 |
| PL107136B1 (pl) | 1980-01-31 |
| SE7513269L (sv) | 1976-05-31 |
| NO753991L ( ) | 1976-06-01 |
| IT1052684B (it) | 1981-07-20 |
| AU500611B2 (en) | 1979-05-24 |
| BE836047A (fr) | 1976-05-28 |
| DK534075A ( ) | 1976-05-30 |
| NL181693B (nl) | 1987-05-04 |
| ZA757054B (en) | 1977-06-29 |
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