FR405313A - Method and device for controlling the amount of light falling on images of cinematographic tapes or films - Google Patents

Method and device for controlling the amount of light falling on images of cinematographic tapes or films

Info

Publication number
FR405313A
FR405313A FR405313DA FR405313A FR 405313 A FR405313 A FR 405313A FR 405313D A FR405313D A FR 405313DA FR 405313 A FR405313 A FR 405313A
Authority
FR
France
Prior art keywords
cinematographic
tapes
films
images
controlling
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)
Inventor
Bronislaw Gwozdz
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
Application granted granted Critical
Publication of FR405313A publication Critical patent/FR405313A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2053—Intensity control of illuminating light

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR405313D 1908-07-23 1909-07-22 Method and device for controlling the amount of light falling on images of cinematographic tapes or films Expired FR405313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE405313X 1908-07-23

Publications (1)

Publication Number Publication Date
FR405313A true FR405313A (en) 1909-12-27

Family

ID=1449804

Family Applications (1)

Application Number Title Priority Date Filing Date
FR405313D Expired FR405313A (en) 1908-07-23 1909-07-22 Method and device for controlling the amount of light falling on images of cinematographic tapes or films

Country Status (1)

Country Link
FR (1) FR405313A (en)

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