GB2572225B - Passive optical sensors - Google Patents

Passive optical sensors Download PDF

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Publication number
GB2572225B
GB2572225B GB1804736.5A GB201804736A GB2572225B GB 2572225 B GB2572225 B GB 2572225B GB 201804736 A GB201804736 A GB 201804736A GB 2572225 B GB2572225 B GB 2572225B
Authority
GB
United Kingdom
Prior art keywords
optical sensors
passive optical
passive
sensors
optical
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.)
Active
Application number
GB1804736.5A
Other versions
GB2572225A (en
GB201804736D0 (en
Inventor
Neild Ian
Fisher Mike
Williamson Michael
Zoualfaghari Mohammad
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications 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 British Telecommunications PLC filed Critical British Telecommunications PLC
Priority to GB1804736.5A priority Critical patent/GB2572225B/en
Publication of GB201804736D0 publication Critical patent/GB201804736D0/en
Publication of GB2572225A publication Critical patent/GB2572225A/en
Application granted granted Critical
Publication of GB2572225B publication Critical patent/GB2572225B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0271—Housings; Attachments or accessories for photometers
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0418—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using attenuators
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0425—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using optical fibers
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J2001/4247—Photometry, e.g. photographic exposure meter using electric radiation detectors for testing lamps or other light sources
    • 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/44—Electric circuits
    • G01J2001/4446—Type of detector
    • G01J2001/446—Photodiode

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Electronic Switches (AREA)
GB1804736.5A 2018-03-23 2018-03-23 Passive optical sensors Active GB2572225B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1804736.5A GB2572225B (en) 2018-03-23 2018-03-23 Passive optical sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1804736.5A GB2572225B (en) 2018-03-23 2018-03-23 Passive optical sensors

Publications (3)

Publication Number Publication Date
GB201804736D0 GB201804736D0 (en) 2018-05-09
GB2572225A GB2572225A (en) 2019-09-25
GB2572225B true GB2572225B (en) 2022-11-09

Family

ID=62067977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1804736.5A Active GB2572225B (en) 2018-03-23 2018-03-23 Passive optical sensors

Country Status (1)

Country Link
GB (1) GB2572225B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293505A (en) * 1992-02-26 1994-03-08 Nec Corporation Quick response solid state relay having a thyristor discharge circuit and a phototransistor
JPH11211564A (en) * 1998-01-27 1999-08-06 Matsushita Electric Works Ltd Illuminance sensor
JP2001004441A (en) * 1999-06-25 2001-01-12 Matsushita Electric Works Ltd Illumination sensor
KR20010062600A (en) * 1999-12-21 2001-07-07 장준호 LED traffic signal lamp having error detecting apparatus and emergency lamp operating apparatus
US20030107322A1 (en) * 2001-12-12 2003-06-12 Melvin Duane F. Efficient solid state switching and control system for retractable aircraft landing lights
WO2013019790A2 (en) * 2011-08-01 2013-02-07 Greenwave Reality, Pte Ltd. Multiple and interchangeable meter reading probes
US20160014872A1 (en) * 2012-08-27 2016-01-14 The Watt Stopper, Inc. Method and Apparatus for Controlling Light Levels to Save Energy
CN205015086U (en) * 2015-08-17 2016-02-03 深圳市亿博兰科技有限公司 Sunshine light intensity sensor and flowerpot

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293505A (en) * 1992-02-26 1994-03-08 Nec Corporation Quick response solid state relay having a thyristor discharge circuit and a phototransistor
JPH11211564A (en) * 1998-01-27 1999-08-06 Matsushita Electric Works Ltd Illuminance sensor
JP2001004441A (en) * 1999-06-25 2001-01-12 Matsushita Electric Works Ltd Illumination sensor
KR20010062600A (en) * 1999-12-21 2001-07-07 장준호 LED traffic signal lamp having error detecting apparatus and emergency lamp operating apparatus
US20030107322A1 (en) * 2001-12-12 2003-06-12 Melvin Duane F. Efficient solid state switching and control system for retractable aircraft landing lights
WO2013019790A2 (en) * 2011-08-01 2013-02-07 Greenwave Reality, Pte Ltd. Multiple and interchangeable meter reading probes
US20160014872A1 (en) * 2012-08-27 2016-01-14 The Watt Stopper, Inc. Method and Apparatus for Controlling Light Levels to Save Energy
CN205015086U (en) * 2015-08-17 2016-02-03 深圳市亿博兰科技有限公司 Sunshine light intensity sensor and flowerpot

Also Published As

Publication number Publication date
GB2572225A (en) 2019-09-25
GB201804736D0 (en) 2018-05-09

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