FR696533A - Improvements to cameras or projection devices - Google Patents

Improvements to cameras or projection devices

Info

Publication number
FR696533A
FR696533A FR696533DA FR696533A FR 696533 A FR696533 A FR 696533A FR 696533D A FR696533D A FR 696533DA FR 696533 A FR696533 A FR 696533A
Authority
FR
France
Prior art keywords
cameras
projection devices
projection
devices
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
Leon Forrest Douglass
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 FR696533A publication Critical patent/FR696533A/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
    • G02B13/08—Anamorphotic objectives
    • G02B13/10—Anamorphotic objectives involving prisms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR696533D 1930-05-26 1930-05-26 Improvements to cameras or projection devices Expired FR696533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR696533T 1930-05-26

Publications (1)

Publication Number Publication Date
FR696533A true FR696533A (en) 1930-12-31

Family

ID=9046673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR696533D Expired FR696533A (en) 1930-05-26 1930-05-26 Improvements to cameras or projection devices

Country Status (1)

Country Link
FR (1) FR696533A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866383A (en) * 1955-10-13 1958-12-30 Newcomer Prism type anamorphoser device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2866383A (en) * 1955-10-13 1958-12-30 Newcomer Prism type anamorphoser device

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