CH549811A - Lichtstarkes objektiv mit veraenderbarer brennweite. - Google Patents

Lichtstarkes objektiv mit veraenderbarer brennweite.

Info

Publication number
CH549811A
CH549811A CH1804072A CH1804072A CH549811A CH 549811 A CH549811 A CH 549811A CH 1804072 A CH1804072 A CH 1804072A CH 1804072 A CH1804072 A CH 1804072A CH 549811 A CH549811 A CH 549811A
Authority
CH
Switzerland
Prior art keywords
focal length
lightweight lens
changeable focal
changeable
lightweight
Prior art date
Application number
CH1804072A
Other languages
English (en)
Original Assignee
Schneider Jos & Co
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 Schneider Jos & Co filed Critical Schneider Jos & Co
Publication of CH549811A publication Critical patent/CH549811A/de

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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145125—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 five groups only the first group being positive arranged +--++

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
CH1804072A 1972-02-01 1972-12-12 Lichtstarkes objektiv mit veraenderbarer brennweite. CH549811A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2204553A DE2204553A1 (de) 1972-02-01 1972-02-01 Lichtstarkes objektiv mit veraenderbarer brennweite

Publications (1)

Publication Number Publication Date
CH549811A true CH549811A (de) 1974-05-31

Family

ID=5834624

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1804072A CH549811A (de) 1972-02-01 1972-12-12 Lichtstarkes objektiv mit veraenderbarer brennweite.

Country Status (5)

Country Link
US (1) US3827786A (de)
CH (1) CH549811A (de)
DE (1) DE2204553A1 (de)
FR (1) FR2169936B1 (de)
GB (1) GB1379703A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127322A (en) * 1978-03-27 1979-10-03 Canon Inc Zoom lens
AT504267B1 (de) * 2005-03-18 2013-06-15 Pollmann Austria Ohg Baueinheit mit elektrischer schaltfunktion
CN109164563B (zh) * 2018-09-17 2020-08-18 河北汉光重工有限责任公司 一种超大像面大相对孔径高清连续变焦光学系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014406A (en) * 1959-02-19 1961-12-26 Frank G Back Varifocal lens assembly for still camera photography
DE1497590C3 (de) * 1966-04-05 1974-10-17 Jos. Schneider & Co, Optische Werke, 6550 Bad Kreuznach Lichtstarkes Objektiv mit veränderbarer Brennweite
DE1647001A1 (de) * 1968-01-05 1971-01-14 Schneider Co Optische Werke Lichtstarkes Objektiv mit veraenderbarer Brennweite

Also Published As

Publication number Publication date
US3827786A (en) 1974-08-06
DE2204553A1 (de) 1973-08-09
FR2169936B1 (de) 1976-11-05
GB1379703A (en) 1975-01-08
FR2169936A1 (de) 1973-09-14

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Legal Events

Date Code Title Description
PL Patent ceased