FR719654A - Improvements to lenses for photographic and cinematographic cameras and optical devices - Google Patents

Improvements to lenses for photographic and cinematographic cameras and optical devices

Info

Publication number
FR719654A
FR719654A FR719654DA FR719654A FR 719654 A FR719654 A FR 719654A FR 719654D A FR719654D A FR 719654DA FR 719654 A FR719654 A FR 719654A
Authority
FR
France
Prior art keywords
photographic
lenses
optical devices
cinematographic cameras
cinematographic
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
Clyde Jay Coleman
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 FR719654A publication Critical patent/FR719654A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/20—Soft-focus objectives

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR719654D 1931-07-06 1931-07-06 Improvements to lenses for photographic and cinematographic cameras and optical devices Expired FR719654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR719654T 1931-07-06

Publications (1)

Publication Number Publication Date
FR719654A true FR719654A (en) 1932-02-09

Family

ID=9091195

Family Applications (1)

Application Number Title Priority Date Filing Date
FR719654D Expired FR719654A (en) 1931-07-06 1931-07-06 Improvements to lenses for photographic and cinematographic cameras and optical devices

Country Status (1)

Country Link
FR (1) FR719654A (en)

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