GB2240000B - Thermal-radiation detection systems and optical choppers - Google Patents

Thermal-radiation detection systems and optical choppers

Info

Publication number
GB2240000B
GB2240000B GB9000051A GB9000051A GB2240000B GB 2240000 B GB2240000 B GB 2240000B GB 9000051 A GB9000051 A GB 9000051A GB 9000051 A GB9000051 A GB 9000051A GB 2240000 B GB2240000 B GB 2240000B
Authority
GB
United Kingdom
Prior art keywords
thermal
radiation detection
detection systems
optical choppers
choppers
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 - Fee Related
Application number
GB9000051A
Other versions
GB2240000A (en
GB9000051D0 (en
Inventor
Andrew Alfred Turnbull
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
Philips Electronics UK Ltd
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 Philips Electronic and Associated Industries Ltd, Philips Electronics UK Ltd filed Critical Philips Electronic and Associated Industries Ltd
Priority to GB9000051A priority Critical patent/GB2240000B/en
Publication of GB9000051D0 publication Critical patent/GB9000051D0/en
Publication of GB2240000A publication Critical patent/GB2240000A/en
Application granted granted Critical
Publication of GB2240000B publication Critical patent/GB2240000B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
    • G02B26/04—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light by periodically varying the intensity of light, e.g. using choppers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • 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
    • G01J5/02—Constructional details
    • G01J5/08—Optical arrangements
    • G01J5/0803—Arrangements for time-dependent attenuation of radiation signals
    • G01J5/0805—Means for chopping radiation
    • 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
    • G01J5/34—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors
    • G01J2005/345—Arrays

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
GB9000051A 1990-01-03 1990-01-03 Thermal-radiation detection systems and optical choppers Expired - Fee Related GB2240000B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9000051A GB2240000B (en) 1990-01-03 1990-01-03 Thermal-radiation detection systems and optical choppers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9000051A GB2240000B (en) 1990-01-03 1990-01-03 Thermal-radiation detection systems and optical choppers

Publications (3)

Publication Number Publication Date
GB9000051D0 GB9000051D0 (en) 1990-05-30
GB2240000A GB2240000A (en) 1991-07-17
GB2240000B true GB2240000B (en) 1993-10-27

Family

ID=10668767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9000051A Expired - Fee Related GB2240000B (en) 1990-01-03 1990-01-03 Thermal-radiation detection systems and optical choppers

Country Status (1)

Country Link
GB (1) GB2240000B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6034371A (en) * 1996-12-20 2000-03-07 Raytheon Company Semi-opaque chopper for thermal imaging system and method
CN1295542C (en) * 2004-12-15 2007-01-17 中国科学院上海光学精密机械研究所 Transparent reversed choppers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2083967A (en) * 1980-09-18 1982-03-31 Philips Nv Pyroelectric pick-up device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2083967A (en) * 1980-09-18 1982-03-31 Philips Nv Pyroelectric pick-up device

Also Published As

Publication number Publication date
GB2240000A (en) 1991-07-17
GB9000051D0 (en) 1990-05-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960103