FR1012507A - Very bright lens - Google Patents

Very bright lens

Info

Publication number
FR1012507A
FR1012507A FR1012507DA FR1012507A FR 1012507 A FR1012507 A FR 1012507A FR 1012507D A FR1012507D A FR 1012507DA FR 1012507 A FR1012507 A FR 1012507A
Authority
FR
France
Prior art keywords
bright lens
bright
lens
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
Andre Levy
Levy
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 FR1012507A publication Critical patent/FR1012507A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
FR1012507D 1949-10-25 1949-10-25 Very bright lens Expired FR1012507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1012507T 1949-10-25

Publications (1)

Publication Number Publication Date
FR1012507A true FR1012507A (en) 1952-07-11

Family

ID=9570904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1012507D Expired FR1012507A (en) 1949-10-25 1949-10-25 Very bright lens

Country Status (1)

Country Link
FR (1) FR1012507A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092681B (en) * 1958-06-28 1960-11-10 Rodenstock Optik G Fast lens
US2978957A (en) * 1958-04-03 1961-04-11 Optische Ind De Oude Delft Nv Optical lens system having a relative aperture larger than f/1
DE1175457B (en) * 1958-04-03 1964-08-06 Optische Ind Iade Oude Delftia Lens with an aperture ratio greater than f / 1

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978957A (en) * 1958-04-03 1961-04-11 Optische Ind De Oude Delft Nv Optical lens system having a relative aperture larger than f/1
DE1175457B (en) * 1958-04-03 1964-08-06 Optische Ind Iade Oude Delftia Lens with an aperture ratio greater than f / 1
DE1092681B (en) * 1958-06-28 1960-11-10 Rodenstock Optik G Fast lens

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