FR798502A - Photometer-rangefinder - Google Patents

Photometer-rangefinder

Info

Publication number
FR798502A
FR798502A FR798502DA FR798502A FR 798502 A FR798502 A FR 798502A FR 798502D A FR798502D A FR 798502DA FR 798502 A FR798502 A FR 798502A
Authority
FR
France
Prior art keywords
rangefinder
photometer
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
Application number
Other languages
French (fr)
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.)
Societe des Telephones Ericsson SA
Original Assignee
Societe des Telephones Ericsson SA
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 Societe des Telephones Ericsson SA filed Critical Societe des Telephones Ericsson SA
Application granted granted Critical
Publication of FR798502A publication Critical patent/FR798502A/en
Expired 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR798502D 1935-02-16 1935-02-16 Photometer-rangefinder Expired FR798502A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR798502T 1935-02-16

Publications (1)

Publication Number Publication Date
FR798502A true FR798502A (en) 1936-05-19

Family

ID=9236228

Family Applications (1)

Application Number Title Priority Date Filing Date
FR798502D Expired FR798502A (en) 1935-02-16 1935-02-16 Photometer-rangefinder

Country Status (1)

Country Link
FR (1) FR798502A (en)

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