JPS5296078A - Brightness distribution measuring device - Google Patents

Brightness distribution measuring device

Info

Publication number
JPS5296078A
JPS5296078A JP1228276A JP1228276A JPS5296078A JP S5296078 A JPS5296078 A JP S5296078A JP 1228276 A JP1228276 A JP 1228276A JP 1228276 A JP1228276 A JP 1228276A JP S5296078 A JPS5296078 A JP S5296078A
Authority
JP
Japan
Prior art keywords
brightness distribution
measuring device
distribution measuring
light receiving
center
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.)
Pending
Application number
JP1228276A
Other languages
Japanese (ja)
Inventor
Kanji Koname
Minoru Yoshida
Mamoru Nonaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1228276A priority Critical patent/JPS5296078A/en
Publication of JPS5296078A publication Critical patent/JPS5296078A/en
Pending legal-status Critical Current

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
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors

Abstract

PURPOSE:To measure the brightness distribution of the whole area with the use of a reduced number of light receiving elements from the output ratios of other light receiving elements to the center light receiving element by arranging the center element at the center of rotation of a rotary disc and the others at different radial positions.
JP1228276A 1976-02-09 1976-02-09 Brightness distribution measuring device Pending JPS5296078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1228276A JPS5296078A (en) 1976-02-09 1976-02-09 Brightness distribution measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1228276A JPS5296078A (en) 1976-02-09 1976-02-09 Brightness distribution measuring device

Publications (1)

Publication Number Publication Date
JPS5296078A true JPS5296078A (en) 1977-08-12

Family

ID=11800994

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1228276A Pending JPS5296078A (en) 1976-02-09 1976-02-09 Brightness distribution measuring device

Country Status (1)

Country Link
JP (1) JPS5296078A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176045A (en) * 1986-01-29 1987-08-01 東芝精機株式会社 Fitting device of lamp
JP2015219151A (en) * 2014-05-19 2015-12-07 日本放送協会 Illumination information measurement device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62176045A (en) * 1986-01-29 1987-08-01 東芝精機株式会社 Fitting device of lamp
JP2015219151A (en) * 2014-05-19 2015-12-07 日本放送協会 Illumination information measurement device

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