FR381397A - Photometer - Google Patents

Photometer

Info

Publication number
FR381397A
FR381397A FR381397DA FR381397A FR 381397 A FR381397 A FR 381397A FR 381397D A FR381397D A FR 381397DA FR 381397 A FR381397 A FR 381397A
Authority
FR
France
Prior art keywords
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)
Inventor
Haakon Bryhni
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR381397A publication Critical patent/FR381397A/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
    • G01J1/60—Photometry, e.g. photographic exposure meter by measuring the pupil of the eye

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR381397D 1906-09-05 1907-08-27 Photometer Expired FR381397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE381397X 1906-09-05

Publications (1)

Publication Number Publication Date
FR381397A true FR381397A (en) 1908-01-10

Family

ID=1427560

Family Applications (1)

Application Number Title Priority Date Filing Date
FR381397D Expired FR381397A (en) 1906-09-05 1907-08-27 Photometer

Country Status (1)

Country Link
FR (1) FR381397A (en)

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