JPS5391789A - Illuminance detector - Google Patents

Illuminance detector

Info

Publication number
JPS5391789A
JPS5391789A JP602877A JP602877A JPS5391789A JP S5391789 A JPS5391789 A JP S5391789A JP 602877 A JP602877 A JP 602877A JP 602877 A JP602877 A JP 602877A JP S5391789 A JPS5391789 A JP S5391789A
Authority
JP
Japan
Prior art keywords
illuminance detector
indicence
ceiling
angles
window
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
JP602877A
Other languages
Japanese (ja)
Inventor
Yoshihiko Tabuchi
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP602877A priority Critical patent/JPS5391789A/en
Publication of JPS5391789A publication Critical patent/JPS5391789A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To perform accurate detection in the form close to the actual by making equal the angles of light indicence in vertical and horizontal directions from a window to detection point by changing the suspension position of a shield box provided with a photo detector from a ceiling and the transverse width of an opening part.
JP602877A 1977-01-22 1977-01-22 Illuminance detector Pending JPS5391789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP602877A JPS5391789A (en) 1977-01-22 1977-01-22 Illuminance detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP602877A JPS5391789A (en) 1977-01-22 1977-01-22 Illuminance detector

Publications (1)

Publication Number Publication Date
JPS5391789A true JPS5391789A (en) 1978-08-11

Family

ID=11627208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP602877A Pending JPS5391789A (en) 1977-01-22 1977-01-22 Illuminance detector

Country Status (1)

Country Link
JP (1) JPS5391789A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5851235U (en) * 1981-10-05 1983-04-07 マツダ株式会社 light detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5851235U (en) * 1981-10-05 1983-04-07 マツダ株式会社 light detector

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