GB8905010D0 - A light source - Google Patents

A light source

Info

Publication number
GB8905010D0
GB8905010D0 GB898905010A GB8905010A GB8905010D0 GB 8905010 D0 GB8905010 D0 GB 8905010D0 GB 898905010 A GB898905010 A GB 898905010A GB 8905010 A GB8905010 A GB 8905010A GB 8905010 D0 GB8905010 D0 GB 8905010D0
Authority
GB
United Kingdom
Prior art keywords
light source
source
light
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.)
Withdrawn
Application number
GB898905010A
Other versions
GB2229034A (en
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.)
Thorn EMI PLC
Original Assignee
Thorn EMI 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 Thorn EMI PLC filed Critical Thorn EMI PLC
Priority to GB8905010A priority Critical patent/GB2229034A/en
Publication of GB8905010D0 publication Critical patent/GB8905010D0/en
Publication of GB2229034A publication Critical patent/GB2229034A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • 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
    • G01J1/08—Arrangements of light sources specially adapted for photometry standard sources, also using luminescent or radioactive material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/62—One or more circuit elements structurally associated with the lamp
    • H01K1/625—Flashing incandescent lamps
GB8905010A 1989-03-04 1989-03-04 A light source Withdrawn GB2229034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8905010A GB2229034A (en) 1989-03-04 1989-03-04 A light source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8905010A GB2229034A (en) 1989-03-04 1989-03-04 A light source

Publications (2)

Publication Number Publication Date
GB8905010D0 true GB8905010D0 (en) 1989-04-19
GB2229034A GB2229034A (en) 1990-09-12

Family

ID=10652768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8905010A Withdrawn GB2229034A (en) 1989-03-04 1989-03-04 A light source

Country Status (1)

Country Link
GB (1) GB2229034A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104217924B (en) * 2014-09-05 2016-06-08 浙江占字光电股份有限公司 Light-intensity test standard lamp
CN104217921B (en) * 2014-09-05 2016-06-08 浙江占字光电股份有限公司 A kind of detection standard lamp of luminous intensity
CN104217923B (en) * 2014-09-05 2016-06-08 浙江占字光电股份有限公司 A kind of standard lamp of luminous intensity
CN104241086A (en) * 2014-09-05 2014-12-24 浙江占字光电股份有限公司 Standard lamp for light intensity detection

Also Published As

Publication number Publication date
GB2229034A (en) 1990-09-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)