FR1123543A - Improvement in the simultaneous achievement of exact framing, film recording and direct electronic transmission of cinematographic images, rigorously homothetic to each other, using a single lens - Google Patents

Improvement in the simultaneous achievement of exact framing, film recording and direct electronic transmission of cinematographic images, rigorously homothetic to each other, using a single lens

Info

Publication number
FR1123543A
FR1123543A FR1123543DA FR1123543A FR 1123543 A FR1123543 A FR 1123543A FR 1123543D A FR1123543D A FR 1123543DA FR 1123543 A FR1123543 A FR 1123543A
Authority
FR
France
Prior art keywords
homothetic
rigorously
improvement
single lens
electronic transmission
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
Henri-Jules Perreau
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
Application granted granted Critical
Publication of FR1123543A publication Critical patent/FR1123543A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/14—Viewfinders
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/633—Control of cameras or camera modules by using electronic viewfinders for displaying additional information relating to control or operation of the camera
    • H04N23/635—Region indicators; Field of view indicators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/36—Scanning of motion picture films, e.g. for telecine

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1123543D 1955-05-06 1955-05-06 Improvement in the simultaneous achievement of exact framing, film recording and direct electronic transmission of cinematographic images, rigorously homothetic to each other, using a single lens Expired FR1123543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1123543T 1955-05-06

Publications (1)

Publication Number Publication Date
FR1123543A true FR1123543A (en) 1956-09-24

Family

ID=9633279

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1123543D Expired FR1123543A (en) 1955-05-06 1955-05-06 Improvement in the simultaneous achievement of exact framing, film recording and direct electronic transmission of cinematographic images, rigorously homothetic to each other, using a single lens

Country Status (1)

Country Link
FR (1) FR1123543A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176934A (en) * 1977-03-10 1979-12-04 Agfa-Gevaert, A.G. Arrangement of a photographic camera
US4705374A (en) * 1986-09-11 1987-11-10 Clairmont Camera, Inc. Tilting viewfinder and video door accessory for motion-picture camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176934A (en) * 1977-03-10 1979-12-04 Agfa-Gevaert, A.G. Arrangement of a photographic camera
US4705374A (en) * 1986-09-11 1987-11-10 Clairmont Camera, Inc. Tilting viewfinder and video door accessory for motion-picture camera

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