FR2376410A1 - Appareil de mesure de la clarte d'une image - Google Patents

Appareil de mesure de la clarte d'une image

Info

Publication number
FR2376410A1
FR2376410A1 FR7639337A FR7639337A FR2376410A1 FR 2376410 A1 FR2376410 A1 FR 2376410A1 FR 7639337 A FR7639337 A FR 7639337A FR 7639337 A FR7639337 A FR 7639337A FR 2376410 A1 FR2376410 A1 FR 2376410A1
Authority
FR
France
Prior art keywords
measuring unit
pen recorder
filter
brightness measuring
picture brightness
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.)
Granted
Application number
FR7639337A
Other languages
English (en)
Other versions
FR2376410B3 (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.)
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
Priority to FR7639337A priority Critical patent/FR2376410A1/fr
Publication of FR2376410A1 publication Critical patent/FR2376410A1/fr
Application granted granted Critical
Publication of FR2376410B3 publication Critical patent/FR2376410B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

a. Appareil de mesure de la clarté d'une image. b. Appareil caractérisé en ce qu'il comporte un dispositif d'éclairage avec une fente fine, un dispositif réflecteur dont la situation angulaire est mesurée, une grille optique comprenant des zones transparentes et des zones opaques sous forme de raies parallèles et un dispositif enregistreur de la lumière transmise ou reflétée. c. L'invention trouve son application dans le domaine des appareils de mesure de la clarté d'une image.
FR7639337A 1976-12-28 1976-12-28 Appareil de mesure de la clarte d'une image Granted FR2376410A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7639337A FR2376410A1 (fr) 1976-12-28 1976-12-28 Appareil de mesure de la clarte d'une image

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7639337A FR2376410A1 (fr) 1976-12-28 1976-12-28 Appareil de mesure de la clarte d'une image

Publications (2)

Publication Number Publication Date
FR2376410A1 true FR2376410A1 (fr) 1978-07-28
FR2376410B3 FR2376410B3 (fr) 1979-08-31

Family

ID=9181639

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639337A Granted FR2376410A1 (fr) 1976-12-28 1976-12-28 Appareil de mesure de la clarte d'une image

Country Status (1)

Country Link
FR (1) FR2376410A1 (fr)

Also Published As

Publication number Publication date
FR2376410B3 (fr) 1979-08-31

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Legal Events

Date Code Title Description
ST Notification of lapse