JPS5264215A - Optical signal reader - Google Patents

Optical signal reader

Info

Publication number: JPS5264215A
Authority: JP; Japan
Prior art keywords: optical signal; signal reader; reader; optical; signal
Prior art date: 1975-11-21
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.): Granted

Application number

JP50139313A

Other languages

Japanese (ja)

Other versions

JPS5535777B2 (en

Inventor

Hitoshi Kanamaru

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Pioneer Corp

Original Assignee

Pioneer Electronic Corp

Priority date (The priority date 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 date listed.)

1975-11-21

Filing date

1975-11-21

Publication date

1977-05-27

1975-11-21 Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp

1975-11-21 Priority to JP50139313A priority Critical patent/JPS5264215A/en

1976-11-19 Priority to DE2652795A priority patent/DE2652795C2/en

1977-05-27 Publication of JPS5264215A publication Critical patent/JPS5264215A/en

1980-09-17 Publication of JPS5535777B2 publication Critical patent/JPS5535777B2/ja

Status Granted legal-status Critical Current

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
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
- 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)
Optical Recording Or Reproduction (AREA)
Optical Head (AREA)

JP50139313A 1975-11-21 1975-11-21 Optical signal reader Granted JPS5264215A (en)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
JP50139313A JPS5264215A (en)	1975-11-21	1975-11-21	Optical signal reader
DE2652795A DE2652795C2 (en)	1975-11-21	1976-11-19	Apparatus for optically scanning signals located on a rotatable recording disk

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP50139313A JPS5264215A (en)	1975-11-21	1975-11-21	Optical signal reader

Publications (2)

Publication Number	Publication Date
JPS5264215A true JPS5264215A (en)	1977-05-27
JPS5535777B2 JPS5535777B2 (en)	1980-09-17

Family

ID=15242382

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
JP50139313A Granted JPS5264215A (en)	1975-11-21	1975-11-21	Optical signal reader

Country Status (2)

Country	Link
JP (1)	JPS5264215A (en)
DE (1)	DE2652795C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55129939A (en) *	1979-03-12	1980-10-08	Willis Craig Ireton	Method and device for recording information
JPS59167860A (en) *	1983-03-12	1984-09-21	Aiwa Co Ltd	Optical disc reproducing device
JPS6325833A (en) *	1986-07-17	1988-02-03	Fujitsu Ltd	Optical head

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2046480A (en) *	1979-03-27	1980-11-12	Tokyo Shibaura Electric Co	Tracking servo and playback system for video disc
US4333173A (en) *	1979-06-15	1982-06-01	Hitachi, Ltd.	Optical information processor with prismatic correction of laser beam shape
NL8103505A (en) *	1981-07-24	1983-02-16	Philips Nv	DEVICE FOR POINT SCANNING OF AN OBJECT.
NL8104946A (en) *	1981-11-02	1983-06-01	Philips Nv	DEVICE FOR READING AND / OR RECORDING AN OPTICALLY READABLE INFORMATION STRUCTURE ON A RECORD CARRIER.
US4534021A (en) *	1981-12-10	1985-08-06	Discovision Associates	Angularly multiplexed optical recording medium
US5161134A (en) *	1989-06-29	1992-11-03	Digital Equipment Corporation	Method for increasing linear bit density in magneto-optical storage media

1975
- 1975-11-21 JP JP50139313A patent/JPS5264215A/en active Granted
1976
- 1976-11-19 DE DE2652795A patent/DE2652795C2/en not_active Expired

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS55129939A (en) *	1979-03-12	1980-10-08	Willis Craig Ireton	Method and device for recording information
JPH0359490B2 (en) *	1979-03-12	1991-09-10	Willis Craig Ireton
JPS59167860A (en) *	1983-03-12	1984-09-21	Aiwa Co Ltd	Optical disc reproducing device
JPS6325833A (en) *	1986-07-17	1988-02-03	Fujitsu Ltd	Optical head

Also Published As

Publication number	Publication date
JPS5535777B2 (en)	1980-09-17
DE2652795A1 (en)	1977-05-26
DE2652795C2 (en)	1984-12-20

Publication	Publication Date	Title
JPS5263793A (en)	1977-05-26	Optical signal reader
JPS5242743A (en)	1977-04-02	Optical reader
JPS5257803A (en)	1977-05-12	Optical reader
JPS51141651A (en)	1976-12-06	Optical beam information reader
JPS51142933A (en)	1976-12-08	Optical memory system
JPS5271250A (en)	1977-06-14	Optical coupler
JPS5280042A (en)	1977-07-05	Optical coupler
GB1553440A (en)	1979-09-26	Optical focussing sensor
IL50235A (en)	1978-06-15	Optical sensors
AU1738576A (en)	1978-03-09	Optical elements
JPS51150347A (en)	1976-12-23	Optical scanner
JPS522727A (en)	1977-01-10	Optical device
JPS51134604A (en)	1976-11-22	Optical reader
GB1550655A (en)	1979-08-15	Optical signal distributors
JPS5255422A (en)	1977-05-06	Optical system
JPS5212850A (en)	1977-01-31	Optical information recorder
JPS51123524A (en)	1976-10-28	Optically reading word
JPS5264215A (en)	1977-05-27	Optical signal reader
JPS5297728A (en)	1977-08-16	Optical device
JPS5211047A (en)	1977-01-27	Optical coupler
GB1552696A (en)	1979-09-19	Optical waveguides
GB1539028A (en)	1979-01-24	Optical systems
GB1511098A (en)	1978-05-17	Optical transponder
HK37679A (en)	1979-06-22	Optical system
YU91777A (en)	1982-05-31	Signal light