BE590456A - Système de lentilles à distance focale variable. - Google Patents

Système de lentilles à distance focale variable.

Info

Publication number
BE590456A
BE590456A BE590456A BE590456A BE590456A BE 590456 A BE590456 A BE 590456A BE 590456 A BE590456 A BE 590456A BE 590456 A BE590456 A BE 590456A BE 590456 A BE590456 A BE 590456A
Authority
BE
Belgium
Prior art keywords
focal length
lens system
length lens
variable focal
variable
Prior art date
Application number
BE590456A
Other languages
English (en)
Original Assignee
Optikyle Inc
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 Optikyle Inc filed Critical Optikyle Inc
Publication of BE590456A publication Critical patent/BE590456A/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/142—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having two groups only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
BE590456A 1959-05-06 1960-05-03 Système de lentilles à distance focale variable. BE590456A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US811478A US2983194A (en) 1959-05-06 1959-05-06 Variable focal length optical objective

Publications (1)

Publication Number Publication Date
BE590456A true BE590456A (fr) 1960-09-01

Family

ID=25206657

Family Applications (1)

Application Number Title Priority Date Filing Date
BE590456A BE590456A (fr) 1959-05-06 1960-05-03 Système de lentilles à distance focale variable.

Country Status (2)

Country Link
US (1) US2983194A (fr)
BE (1) BE590456A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3035487A (en) * 1960-02-15 1962-05-22 Bausch & Lomb Variable power optical system
US3216319A (en) * 1961-07-26 1965-11-09 Argus Inc Three component variable focal length lens system
TWI541539B (zh) 2014-12-30 2016-07-11 大立光電股份有限公司 成像光學鏡片組、取像裝置及電子裝置
TWI637207B (zh) 2017-09-22 2018-10-01 大立光電股份有限公司 成像透鏡組、取像裝置及電子裝置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2732763A (en) * 1956-01-31 Varifocal lens constructions and devices
US2566485A (en) * 1949-01-28 1951-09-04 Optique & De Mecanique De Haut Auxiliary optical device with variable magnifying power
DE1074874B (de) * 1954-02-18 1960-02-04 Long Island N Y Frank Gerard Back Glen Cove (V St A) Objektiv mit veränderlicher Brennweite

Also Published As

Publication number Publication date
US2983194A (en) 1961-05-09

Similar Documents

Publication Publication Date Title
CH386129A (fr) Système optique à distance focale variable
FR1274469A (fr) Objectif à focale variable
BE590456A (fr) Système de lentilles à distance focale variable.
FR1333932A (fr) Objectif de longueur focale variable
FR1315029A (fr) Objectif de longueur focale variable
FR1344261A (fr) Objectif de longueur focale variable
FR1336300A (fr) Système optique à distance focale variable
CH386130A (fr) Système optique à distance focale variable
FR1256418A (fr) Système de lentilles à distance focale variable
CH380405A (fr) Objectif à longueur focale variable
FR1259007A (fr) Objectif à distance focale variable de construction simple
CH384888A (fr) Objectif à focale varible
FR1335018A (fr) Système de ressorts à flexibilité variable
FR1244934A (fr) Objectif à distance focale variable
FR1150483A (fr) Système optique à distance focale variable
FR1322227A (fr) Système optique à distance focale variable
DK90030C (da) Linsesystem med variabel brændvidde.
DK89166C (da) Linsesystem med variabel brændvidde.
FR85460E (fr) Objectif de projection à distance focale progressivement variable
FR1258948A (fr) Objectif à distance focale variable
FR1278778A (fr) Objectif à distance focale variable
FR1358795A (fr) Système de lentilles perfectionné
FR1345639A (fr) Objectif de projection à distance focale progressivement variable
FR80757E (fr) Objectif de longueur focale variable
FR1369751A (fr) Système de spectacles à prépaiement