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FR1268730A - Visual photometric method for heterochromic photometry and apparatus for carrying out this method - Google Patents

Visual photometric method for heterochromic photometry and apparatus for carrying out this method

Info

Publication number
FR1268730A
FR1268730A FR838537A FR838537A FR1268730A FR 1268730 A FR1268730 A FR 1268730A FR 838537 A FR838537 A FR 838537A FR 838537 A FR838537 A FR 838537A FR 1268730 A FR1268730 A FR 1268730A
Authority
FR
France
Prior art keywords
heterochromic
photometry
carrying
visual photometric
visual
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
FR838537A
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.)
C Reichert Optische Werke AG
Original Assignee
C Reichert Optische Werke AG
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 C Reichert Optische Werke AG filed Critical C Reichert Optische Werke AG
Priority to FR838537A priority Critical patent/FR1268730A/en
Application granted granted Critical
Publication of FR1268730A publication Critical patent/FR1268730A/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
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR838537A 1960-09-14 1960-09-14 Visual photometric method for heterochromic photometry and apparatus for carrying out this method Expired FR1268730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR838537A FR1268730A (en) 1960-09-14 1960-09-14 Visual photometric method for heterochromic photometry and apparatus for carrying out this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR838537A FR1268730A (en) 1960-09-14 1960-09-14 Visual photometric method for heterochromic photometry and apparatus for carrying out this method

Publications (1)

Publication Number Publication Date
FR1268730A true FR1268730A (en) 1961-08-04

Family

ID=8738989

Family Applications (1)

Application Number Title Priority Date Filing Date
FR838537A Expired FR1268730A (en) 1960-09-14 1960-09-14 Visual photometric method for heterochromic photometry and apparatus for carrying out this method

Country Status (1)

Country Link
FR (1) FR1268730A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260179B (en) * 1964-04-13 1968-02-01 Polaroid Corp Comparison photometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1260179B (en) * 1964-04-13 1968-02-01 Polaroid Corp Comparison photometer

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