GB2152691B - Infra-red detector - Google Patents

Infra-red detector

Info

Publication number
GB2152691B
GB2152691B GB08420564A GB8420564A GB2152691B GB 2152691 B GB2152691 B GB 2152691B GB 08420564 A GB08420564 A GB 08420564A GB 8420564 A GB8420564 A GB 8420564A GB 2152691 B GB2152691 B GB 2152691B
Authority
GB
United Kingdom
Prior art keywords
infra
red detector
red
detector
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
GB08420564A
Other versions
GB2152691A (en
Inventor
David William Satchell
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
Priority claimed from GB08321807A external-priority patent/GB2145875B/en
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB08420564A priority Critical patent/GB2152691B/en
Publication of GB2152691A publication Critical patent/GB2152691A/en
Application granted granted Critical
Publication of GB2152691B publication Critical patent/GB2152691B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/01—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 intensity, phase, polarisation or colour 
    • G02F1/13—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 intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/20—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
    • 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
    • G02F1/01—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 intensity, phase, polarisation or colour 
    • G02F1/13—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 intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—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 intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Radiation Pyrometers (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
GB08420564A 1983-08-12 1984-08-13 Infra-red detector Expired GB2152691B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08420564A GB2152691B (en) 1983-08-12 1984-08-13 Infra-red detector

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08321807A GB2145875B (en) 1983-08-12 1983-08-12 Infra-red-detector
GB08420564A GB2152691B (en) 1983-08-12 1984-08-13 Infra-red detector

Publications (2)

Publication Number Publication Date
GB2152691A GB2152691A (en) 1985-08-07
GB2152691B true GB2152691B (en) 1986-11-12

Family

ID=26286762

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08420564A Expired GB2152691B (en) 1983-08-12 1984-08-13 Infra-red detector

Country Status (1)

Country Link
GB (1) GB2152691B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE56194B1 (en) * 1985-01-07 1991-05-08 Scully Richard L Infrared imaging system
DE3841244A1 (en) * 1988-12-07 1990-06-13 Erwin Strigl Device for measuring the intensity profile of an infrared laser beam
GB2228566A (en) * 1988-12-16 1990-08-29 Marconi Gec Ltd Infra-red sensors
US5434032A (en) * 1992-11-06 1995-07-18 Board Of Regents, The University Of Texas System Infrared imaging methods and systems
GB0921944D0 (en) 2009-12-16 2010-02-03 St Microelectronics Ltd Improvements in or relating to compact fluorescent lamps

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637291A (en) * 1970-02-11 1972-01-25 Ncr Co Display device with inherent memory
US3836243A (en) * 1972-06-27 1974-09-17 Bell Telephone Labor Inc Liquid crystal display apparatus
FR2275087A1 (en) * 1974-06-14 1976-01-09 Thomson Csf BLACK AND WHITE IMAGE REPRODUCTION DEVICE USING A MATERIAL WITH A SMECTIC PHASE AND TELETRANSMISSION AND TELEPHOTOOGRAPHY SYSTEM IMPLEMENTING THIS DEVICE
FR2292253A1 (en) * 1974-11-21 1976-06-18 Thomson Csf METHOD AND DEVICE USING A THERMO-OPTICAL EFFECT IN A LIQUID CRYSTAL FOR THE REPRODUCTION OF IMAGES IN REAL TIME AND WITHOUT MEMORY
GB1604206A (en) * 1977-06-20 1981-12-02 Hughes Aircraft Co Ac driven liquid crystal light valve
US4191452A (en) * 1977-12-28 1980-03-04 Hughes Aircraft Company AC silicon PN junction photodiode light-valve substrate

Also Published As

Publication number Publication date
GB2152691A (en) 1985-08-07

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Legal Events

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