FR824641A - Lens enhancements for telescopes, cameras and other applications - Google Patents

Lens enhancements for telescopes, cameras and other applications

Info

Publication number
FR824641A
FR824641A FR824641DA FR824641A FR 824641 A FR824641 A FR 824641A FR 824641D A FR824641D A FR 824641DA FR 824641 A FR824641 A FR 824641A
Authority
FR
France
Prior art keywords
telescopes
enhancements
cameras
lens
applications
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
Maurice James Gunn
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 FR824641A publication Critical patent/FR824641A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR824641D 1937-07-22 1937-07-22 Lens enhancements for telescopes, cameras and other applications Expired FR824641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR824641T 1937-07-22

Publications (1)

Publication Number Publication Date
FR824641A true FR824641A (en) 1938-02-11

Family

ID=9281910

Family Applications (1)

Application Number Title Priority Date Filing Date
FR824641D Expired FR824641A (en) 1937-07-22 1937-07-22 Lens enhancements for telescopes, cameras and other applications

Country Status (1)

Country Link
FR (1) FR824641A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036498A (en) * 1958-08-26 1962-05-29 Sylvania Electric Prod Lens for projection and photography
EP0034947A1 (en) * 1980-02-25 1981-09-02 Xerox Corporation Multi-element lens system
EP0273568A1 (en) * 1986-11-20 1988-07-06 Xerox Corporation Gas zoom lens assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036498A (en) * 1958-08-26 1962-05-29 Sylvania Electric Prod Lens for projection and photography
EP0034947A1 (en) * 1980-02-25 1981-09-02 Xerox Corporation Multi-element lens system
EP0273568A1 (en) * 1986-11-20 1988-07-06 Xerox Corporation Gas zoom lens assembly

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