FR2366596A1 - Dispositif temporisateur electronique automatique utilisable avec un appareil de reproduction photographique - Google Patents

Dispositif temporisateur electronique automatique utilisable avec un appareil de reproduction photographique

Info

Publication number
FR2366596A1
FR2366596A1 FR7729710A FR7729710A FR2366596A1 FR 2366596 A1 FR2366596 A1 FR 2366596A1 FR 7729710 A FR7729710 A FR 7729710A FR 7729710 A FR7729710 A FR 7729710A FR 2366596 A1 FR2366596 A1 FR 2366596A1
Authority
FR
France
Prior art keywords
light
electronic timer
automatic electronic
current
diode
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
FR7729710A
Other languages
English (en)
French (fr)
Other versions
FR2366596B3 (https=
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 filed Critical
Publication of FR2366596A1 publication Critical patent/FR2366596A1/fr
Application granted granted Critical
Publication of FR2366596B3 publication Critical patent/FR2366596B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Projection-Type Copiers In General (AREA)
FR7729710A 1976-10-04 1977-10-03 Dispositif temporisateur electronique automatique utilisable avec un appareil de reproduction photographique Granted FR2366596A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69378/76A IT1071629B (it) 1976-10-04 1976-10-04 Dispositivo temporiazzatore elettronico automatico per ingrandimenti o riproduzione o per contatto

Publications (2)

Publication Number Publication Date
FR2366596A1 true FR2366596A1 (fr) 1978-04-28
FR2366596B3 FR2366596B3 (https=) 1980-06-20

Family

ID=11311998

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729710A Granted FR2366596A1 (fr) 1976-10-04 1977-10-03 Dispositif temporisateur electronique automatique utilisable avec un appareil de reproduction photographique

Country Status (4)

Country Link
US (1) US4236816A (https=)
DE (1) DE2744478A1 (https=)
FR (1) FR2366596A1 (https=)
IT (1) IT1071629B (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124458A1 (de) * 1981-06-22 1982-12-30 Dr. Böger Duplomat Apparate KG (GmbH & Co), 2000 Wedel Lichtintegrator fuer reproduktionskameras und kopiergeraete

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2952780A (en) * 1954-01-08 1960-09-13 Jr Elwood C Rogers Photographic printing apparatus
JPS5243365B2 (https=) * 1971-09-22 1977-10-29
JPS5834424Y2 (ja) * 1973-09-06 1983-08-02 京セラ株式会社 デンキシヤツタカイロ
JPS5146937A (en) * 1974-10-21 1976-04-22 Ricoh Kk Denkishatsuta niokeru teburekeikoku oyobi shatsutakaikohyojisochi
US4041504A (en) * 1975-05-19 1977-08-09 Vitautas Jurgio Iodvalkis Photographic exposure setting device

Also Published As

Publication number Publication date
US4236816A (en) 1980-12-02
DE2744478A1 (de) 1978-04-06
IT1071629B (it) 1985-04-10
FR2366596B3 (https=) 1980-06-20

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