FR1057339A - Photographic printing device - Google Patents

Photographic printing device

Info

Publication number
FR1057339A
FR1057339A FR1057339DA FR1057339A FR 1057339 A FR1057339 A FR 1057339A FR 1057339D A FR1057339D A FR 1057339DA FR 1057339 A FR1057339 A FR 1057339A
Authority
FR
France
Prior art keywords
printing device
photographic printing
photographic
printing
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)
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR1057339A publication Critical patent/FR1057339A/en
Expired 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
    • G03B27/725—Optical projection devices wherein the contrast is controlled electrically (e.g. cathode ray tube masking)

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
FR1057339D 1951-06-07 1952-05-24 Photographic printing device Expired FR1057339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1057339XA 1951-06-07 1951-06-07

Publications (1)

Publication Number Publication Date
FR1057339A true FR1057339A (en) 1954-03-08

Family

ID=22307496

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1057339D Expired FR1057339A (en) 1951-06-07 1952-05-24 Photographic printing device

Country Status (1)

Country Link
FR (1) FR1057339A (en)

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