GB2372314B - Contrast luminance measuring apparatus and method - Google Patents

Contrast luminance measuring apparatus and method

Info

Publication number
GB2372314B
GB2372314B GB0024851A GB0024851A GB2372314B GB 2372314 B GB2372314 B GB 2372314B GB 0024851 A GB0024851 A GB 0024851A GB 0024851 A GB0024851 A GB 0024851A GB 2372314 B GB2372314 B GB 2372314B
Authority
GB
United Kingdom
Prior art keywords
measuring apparatus
luminance measuring
contrast luminance
contrast
measuring
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 - Lifetime
Application number
GB0024851A
Other versions
GB2372314A (en
GB0024851D0 (en
Inventor
Christopher Francis Ward
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.)
VOTR CONSULTING Ltd
Original Assignee
VOTR CONSULTING 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 VOTR CONSULTING Ltd filed Critical VOTR CONSULTING Ltd
Priority to GB0024851A priority Critical patent/GB2372314B/en
Publication of GB0024851D0 publication Critical patent/GB0024851D0/en
Publication of GB2372314A publication Critical patent/GB2372314A/en
Application granted granted Critical
Publication of GB2372314B publication Critical patent/GB2372314B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB0024851A 2000-10-11 2000-10-11 Contrast luminance measuring apparatus and method Expired - Lifetime GB2372314B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0024851A GB2372314B (en) 2000-10-11 2000-10-11 Contrast luminance measuring apparatus and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0024851A GB2372314B (en) 2000-10-11 2000-10-11 Contrast luminance measuring apparatus and method

Publications (3)

Publication Number Publication Date
GB0024851D0 GB0024851D0 (en) 2000-11-22
GB2372314A GB2372314A (en) 2002-08-21
GB2372314B true GB2372314B (en) 2005-03-16

Family

ID=9901040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0024851A Expired - Lifetime GB2372314B (en) 2000-10-11 2000-10-11 Contrast luminance measuring apparatus and method

Country Status (1)

Country Link
GB (1) GB2372314B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106092137A (en) * 2016-06-06 2016-11-09 长安大学 The outdoor calibrator (-ter) unit of a kind of vehicle-mounted three-dimensional laser pavement detection system and method
CN109556880A (en) * 2017-09-27 2019-04-02 裕隆汽车制造股份有限公司 The test device and test method of image-type collision prevention of vehicle module

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI119831B (en) * 2003-06-10 2009-03-31 Destia Oy Method and apparatus for defining road marking condition level
US7876421B2 (en) 2008-01-29 2011-01-25 Ian Lewin Light meter apparatus and system
DK2531837T3 (en) * 2010-02-04 2021-06-14 Force Tech METHOD AND APPARATUS FOR MEASURING RETURN RADIATION FROM A SURFACE
US8786847B2 (en) 2011-01-12 2014-07-22 Underwriters Laboratories, Inc. Light measuring meter apparatus
WO2014076324A1 (en) * 2012-11-14 2014-05-22 Fundación Cidaut Dynamic method and device for measuring the luminance and back-reflection of road markings and signs and obtaining the shape, position and dimensions thereof
CN103487407A (en) * 2013-08-13 2014-01-01 深圳市灯光环境管理中心 Device for measuring luminance coefficient distribution of pavement paving material
CN107015293B (en) * 2017-02-21 2019-08-23 中国水利水电科学研究院 A kind of Regional Rainfall uniformity measuring system and method
GB201719823D0 (en) 2017-11-29 2018-01-10 Reflective Measurement Systems Ltd A Retroeflectivity measurement system
CN112033909B (en) * 2020-09-08 2023-08-08 中路高科交通检测检验认证有限公司 Tunnel pavement brightness coefficient online test method and device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2067748A (en) * 1979-12-21 1981-07-30 Autostrade Concess Const Retroreflectometer
US4505590A (en) * 1982-08-30 1985-03-19 Amerace Corporation Mobile testing apparatus
GB2173897A (en) * 1985-04-18 1986-10-22 Potters Industries Inc Laser retroreflectivity measuring apparatus and method
FR2661248A1 (en) * 1990-04-20 1991-10-25 France Etat Ponts Chaussees Method and device for measuring continuously and in ambient light the back reflection of a road marking and the contrast
GB2338300A (en) * 1997-03-05 1999-12-15 Philip Anthony Gallagher Reflectivity measuring apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2067748A (en) * 1979-12-21 1981-07-30 Autostrade Concess Const Retroreflectometer
US4505590A (en) * 1982-08-30 1985-03-19 Amerace Corporation Mobile testing apparatus
GB2173897A (en) * 1985-04-18 1986-10-22 Potters Industries Inc Laser retroreflectivity measuring apparatus and method
FR2661248A1 (en) * 1990-04-20 1991-10-25 France Etat Ponts Chaussees Method and device for measuring continuously and in ambient light the back reflection of a road marking and the contrast
GB2338300A (en) * 1997-03-05 1999-12-15 Philip Anthony Gallagher Reflectivity measuring apparatus and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106092137A (en) * 2016-06-06 2016-11-09 长安大学 The outdoor calibrator (-ter) unit of a kind of vehicle-mounted three-dimensional laser pavement detection system and method
CN106092137B (en) * 2016-06-06 2017-07-07 长安大学 The outdoor calibrator (-ter) unit and method of a kind of vehicle-mounted three-dimensional laser pavement detection system
CN109556880A (en) * 2017-09-27 2019-04-02 裕隆汽车制造股份有限公司 The test device and test method of image-type collision prevention of vehicle module

Also Published As

Publication number Publication date
GB2372314A (en) 2002-08-21
GB0024851D0 (en) 2000-11-22

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