BE783144A - Photometre - comparateur - Google Patents

Photometre - comparateur

Info

Publication number
BE783144A
BE783144A BE783144A BE783144A BE783144A BE 783144 A BE783144 A BE 783144A BE 783144 A BE783144 A BE 783144A BE 783144 A BE783144 A BE 783144A BE 783144 A BE783144 A BE 783144A
Authority
BE
Belgium
Prior art keywords
photometer
comparator
Prior art date
Application number
BE783144A
Other languages
English (en)
Inventor
L De Brabander
Original Assignee
Le Fonds D Etudes Pour La Secu
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 Le Fonds D Etudes Pour La Secu filed Critical Le Fonds D Etudes Pour La Secu
Priority to BE783144A priority Critical patent/BE783144A/fr
Publication of BE783144A publication Critical patent/BE783144A/fr

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
BE783144A 1972-05-08 1972-05-08 Photometre - comparateur BE783144A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE783144A BE783144A (fr) 1972-05-08 1972-05-08 Photometre - comparateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE783144A BE783144A (fr) 1972-05-08 1972-05-08 Photometre - comparateur

Publications (1)

Publication Number Publication Date
BE783144A true BE783144A (fr) 1972-09-01

Family

ID=3859652

Family Applications (1)

Application Number Title Priority Date Filing Date
BE783144A BE783144A (fr) 1972-05-08 1972-05-08 Photometre - comparateur

Country Status (1)

Country Link
BE (1) BE783144A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435078A (en) 1980-06-27 1984-03-06 Fonds D'etudes Pour La Securite Routiere A.S.B.L. Electronic light beam tester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435078A (en) 1980-06-27 1984-03-06 Fonds D'etudes Pour La Securite Routiere A.S.B.L. Electronic light beam tester

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: L' INSTITUT BELGE POUR LA SECURITE ROUTIERE A.S.B.

Effective date: 19880531