FR12318E - Pupillometer that can be used as a photometer in photography - Google Patents

Pupillometer that can be used as a photometer in photography

Info

Publication number
FR12318E
FR12318E FR12318DA FR12318E FR 12318 E FR12318 E FR 12318E FR 12318D A FR12318D A FR 12318DA FR 12318 E FR12318 E FR 12318E
Authority
FR
France
Prior art keywords
pupillometer
photometer
photography
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 FR12318E publication Critical patent/FR12318E/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)
FR12318D 1908-08-01 1910-03-15 Pupillometer that can be used as a photometer in photography Expired FR12318E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR392874T 1908-08-01
FR12318T 1910-03-15

Publications (1)

Publication Number Publication Date
FR12318E true FR12318E (en) 1910-08-29

Family

ID=1354524

Family Applications (1)

Application Number Title Priority Date Filing Date
FR12318D Expired FR12318E (en) 1908-08-01 1910-03-15 Pupillometer that can be used as a photometer in photography

Country Status (1)

Country Link
FR (1) FR12318E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434890A (en) * 1938-03-28 1948-01-20 James B Saunders Pupillometric exposure meter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434890A (en) * 1938-03-28 1948-01-20 James B Saunders Pupillometric exposure meter

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