FR2025151A1 - - Google Patents

Info

Publication number
FR2025151A1
FR2025151A1 FR6931245A FR6931245A FR2025151A1 FR 2025151 A1 FR2025151 A1 FR 2025151A1 FR 6931245 A FR6931245 A FR 6931245A FR 6931245 A FR6931245 A FR 6931245A FR 2025151 A1 FR2025151 A1 FR 2025151A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6931245A
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.)
OST CLARENCE
Original Assignee
OST CLARENCE
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 OST CLARENCE filed Critical OST CLARENCE
Publication of FR2025151A1 publication Critical patent/FR2025151A1/fr
Withdrawn legal-status Critical Current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)
  • Control Of Exposure In Printing And Copying (AREA)
  • Exposure Control For Cameras (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
FR6931245A 1968-12-04 1969-09-12 Withdrawn FR2025151A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78122968A 1968-12-04 1968-12-04

Publications (1)

Publication Number Publication Date
FR2025151A1 true FR2025151A1 (fr) 1970-09-04

Family

ID=25122085

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6931245A Withdrawn FR2025151A1 (fr) 1968-12-04 1969-09-12

Country Status (4)

Country Link
US (1) US3542470A (fr)
DE (1) DE1946642A1 (fr)
FR (1) FR2025151A1 (fr)
GB (1) GB1281603A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743821A (en) * 1970-07-15 1973-07-03 Carlson C Co Density calculator
US3734630A (en) * 1971-09-09 1973-05-22 Logetronics Inc Copy density reading and exposure control system
US3907428A (en) * 1972-10-17 1975-09-23 Eskofot A S Industriparken Reproduction camera having a control circuit for automatic regulation of the exposure time
US3868183A (en) * 1973-07-16 1975-02-25 Graphic Arts Manufacturing Co Exposure control system
GB1492740A (en) * 1973-12-17 1977-11-23 Crosfield Electronics Ltd Preparation of half-tone images
US3992098A (en) * 1975-07-02 1976-11-16 Itek Corporation System for digitally controlling exposure time of camera
US4302100A (en) * 1980-03-05 1981-11-24 Portage Newspaper Supply Company Photographic direct-print system
US4487500A (en) * 1982-03-29 1984-12-11 Electronic Mechanical Products Co. Photographic reproduction system
US4540276A (en) * 1982-03-29 1985-09-10 Ost Clarence S Color photographic reproduction system

Also Published As

Publication number Publication date
GB1281603A (en) 1972-07-12
DE1946642A1 (de) 1970-06-18
US3542470A (en) 1970-11-24

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Legal Events

Date Code Title Description
ST Notification of lapse