GB2119109B - Optical scanning system - Google Patents

Optical scanning system

Info

Publication number
GB2119109B
GB2119109B GB08211743A GB8211743A GB2119109B GB 2119109 B GB2119109 B GB 2119109B GB 08211743 A GB08211743 A GB 08211743A GB 8211743 A GB8211743 A GB 8211743A GB 2119109 B GB2119109 B GB 2119109B
Authority
GB
United Kingdom
Prior art keywords
optical scanning
scanning system
optical
scanning
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
Application number
GB08211743A
Other versions
GB2119109A (en
Inventor
John Stuart Heeks
Stephen Wright
John David Jackson
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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.)
Filing date
Publication date
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB08211743A priority Critical patent/GB2119109B/en
Publication of GB2119109A publication Critical patent/GB2119109A/en
Application granted granted Critical
Publication of GB2119109B publication Critical patent/GB2119109B/en
Expired legal-status Critical Current

Links

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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/33—Acousto-optical deflection devices
GB08211743A 1982-04-22 1982-04-22 Optical scanning system Expired GB2119109B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08211743A GB2119109B (en) 1982-04-22 1982-04-22 Optical scanning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08211743A GB2119109B (en) 1982-04-22 1982-04-22 Optical scanning system

Publications (2)

Publication Number Publication Date
GB2119109A GB2119109A (en) 1983-11-09
GB2119109B true GB2119109B (en) 1985-08-07

Family

ID=10529884

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08211743A Expired GB2119109B (en) 1982-04-22 1982-04-22 Optical scanning system

Country Status (1)

Country Link
GB (1) GB2119109B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167202A (en) * 1984-11-16 1986-05-21 Stc Plc Data storage systems
FR2602346B1 (en) * 1986-08-01 1988-09-16 Thomson Csf LOCATION SYSTEM USING A LASER BEAM RETROREFLECTOR AND MODULATOR ASSEMBLY
US5278816A (en) * 1989-09-22 1994-01-11 Russell James T Recording/reproducing system using wavelength/depth selective optical storage medium
GB0617945D0 (en) 2006-09-12 2006-10-18 Ucl Business Plc Imaging apparatus and methods
GB201006679D0 (en) 2010-04-21 2010-06-09 Ucl Business Plc Methods and apparatus to control acousto-optic deflectors
GB201106787D0 (en) 2011-04-20 2011-06-01 Ucl Business Plc Methods and apparatus to control acousto-optic deflectors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4052121A (en) * 1975-09-10 1977-10-04 Itek Corporation Noncollinear tunable acousto-optic filter

Also Published As

Publication number Publication date
GB2119109A (en) 1983-11-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee