FR985758A - Improvements to optical systems for television cameras - Google Patents

Improvements to optical systems for television cameras

Info

Publication number
FR985758A
FR985758A FR985758DA FR985758A FR 985758 A FR985758 A FR 985758A FR 985758D A FR985758D A FR 985758DA FR 985758 A FR985758 A FR 985758A
Authority
FR
France
Prior art keywords
optical systems
television cameras
cameras
television
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
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR985758A publication Critical patent/FR985758A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/144—Beam splitting or combining systems operating by reflection only using partially transparent surfaces without spectral selectivity
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/141—Beam splitting or combining systems operating by reflection only using dichroic mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Viewfinders (AREA)
FR985758D 1948-05-11 1949-05-06 Improvements to optical systems for television cameras Expired FR985758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US661797XA 1948-05-11 1948-05-11

Publications (1)

Publication Number Publication Date
FR985758A true FR985758A (en) 1951-07-23

Family

ID=22067767

Family Applications (1)

Application Number Title Priority Date Filing Date
FR985758D Expired FR985758A (en) 1948-05-11 1949-05-06 Improvements to optical systems for television cameras

Country Status (3)

Country Link
BE (1) BE488963A (en)
FR (1) FR985758A (en)
GB (1) GB661797A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709391A (en) * 1953-06-29 1955-05-31 Nichols Robert Gordon Motion picture camera with two view finders

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330797A (en) * 1979-05-29 1982-05-18 Victor Company Of Japan, Ltd. View-finder for television camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709391A (en) * 1953-06-29 1955-05-31 Nichols Robert Gordon Motion picture camera with two view finders

Also Published As

Publication number Publication date
BE488963A (en)
GB661797A (en) 1951-11-28

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