FR1073529A - Système optique de commande de l'intensité de la lumière - Google Patents

Système optique de commande de l'intensité de la lumière

Info

Publication number
FR1073529A
FR1073529A FR1073529DA FR1073529A FR 1073529 A FR1073529 A FR 1073529A FR 1073529D A FR1073529D A FR 1073529DA FR 1073529 A FR1073529 A FR 1073529A
Authority
FR
France
Prior art keywords
control system
light intensity
optical light
intensity control
optical
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
English (en)
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 FR1073529A publication Critical patent/FR1073529A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Color Television Image Signal Generators (AREA)
FR1073529D 1952-04-21 1953-01-15 Système optique de commande de l'intensité de la lumière Expired FR1073529A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US283304A US2757232A (en) 1952-04-21 1952-04-21 Light intensity controlling optical system

Publications (1)

Publication Number Publication Date
FR1073529A true FR1073529A (fr) 1954-09-27

Family

ID=23085402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1073529D Expired FR1073529A (fr) 1952-04-21 1953-01-15 Système optique de commande de l'intensité de la lumière

Country Status (2)

Country Link
US (1) US2757232A (fr)
FR (1) FR1073529A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0488460A1 (fr) * 1990-11-29 1992-06-03 Koninklijke Philips Electronics N.V. Temps d'intégration court, régulé par une lamelle d'obturateur principale et une lamelle auxilliaire

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB886016A (en) * 1957-03-22 1962-01-03 Emi Ltd Improvements relating to colour television cameras
GB835153A (en) * 1957-09-02 1960-05-18 Harries Television Res Ltd Improvements in and relating to optical systems for use in television, radar and thelike
NL253794A (fr) * 1959-07-14
US3041924A (en) * 1959-11-18 1962-07-03 Strass Herbert Kurt Motion picture camera for optical pyrometry
BE630287A (fr) * 1962-03-29
US3457364A (en) * 1964-09-14 1969-07-22 Julio B Carrillo Color television system providing an illusion of depth
DE2642975C2 (de) * 1976-09-24 1978-09-07 Gossen Gmbh, 8520 Erlangen Vorrichtung zur Ermittlung der die korrekte Belichtung eines Films bei der Aufnahme eines Objekts gewährleistenden Belichtungsparameterwerte
US4510529A (en) * 1981-07-20 1985-04-09 Panavision, Incorporated Electronic cinema camera
JPH0666906B2 (ja) * 1984-01-31 1994-08-24 キヤノン株式会社 光学装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1629974A (en) * 1921-02-24 1927-05-24 Russo Gioacchino Optical apparatus, as photographic camera, for reproducing the objects with their natural colors
US2391430A (en) * 1942-12-02 1945-12-25 Joseph J Macek Camera and projector
FR945960A (fr) * 1946-05-07 1949-05-19 Système optique pour le cinéma, la photographie et la télévision en couleur
US2510374A (en) * 1946-11-29 1950-06-06 Rca Corp Optical assembly for projecting an image of luminous characteristics upon light responsive element
US2536866A (en) * 1947-01-16 1951-01-02 Farrand Optical Co Inc Reflex camera combination, including telephoto lens and telescope finder
US2607845A (en) * 1947-08-20 1952-08-19 Technicolor Motion Picture Motion-picture photography and monitoring system for color television
NL142053B (nl) * 1947-09-24 Velsicol Chemical Corp Werkwijze voor het bereiden van een herbicide preparaat.
US2672072A (en) * 1951-03-15 1954-03-16 Rca Corp Color television optical system
US2632370A (en) * 1951-07-13 1953-03-24 Rca Corp Television camera turret lens selecting and focusing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0488460A1 (fr) * 1990-11-29 1992-06-03 Koninklijke Philips Electronics N.V. Temps d'intégration court, régulé par une lamelle d'obturateur principale et une lamelle auxilliaire

Also Published As

Publication number Publication date
US2757232A (en) 1956-07-31

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