GB1366326A - Zoom lens - Google Patents

Zoom lens

Info

Publication number
GB1366326A
GB1366326A GB4194271A GB4194271A GB1366326A GB 1366326 A GB1366326 A GB 1366326A GB 4194271 A GB4194271 A GB 4194271A GB 4194271 A GB4194271 A GB 4194271A GB 1366326 A GB1366326 A GB 1366326A
Authority
GB
United Kingdom
Prior art keywords
zoom lens
zoom
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
GB4194271A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak 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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1366326A publication Critical patent/GB1366326A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/006—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly setting of both diaphragm and distance
    • 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
    • G02B15/144—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 four groups only
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B19/00—Cameras
    • G03B19/18—Motion-picture cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
GB4194271A 1970-09-08 1971-09-08 Zoom lens Expired GB1366326A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7017070A 1970-09-08 1970-09-08
US7016970A 1970-09-08 1970-09-08

Publications (1)

Publication Number Publication Date
GB1366326A true GB1366326A (en) 1974-09-11

Family

ID=26750857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4194271A Expired GB1366326A (en) 1970-09-08 1971-09-08 Zoom lens

Country Status (3)

Country Link
DE (1) DE2144941A1 (enExample)
FR (1) FR2106359B1 (enExample)
GB (1) GB1366326A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085438A1 (en) * 2002-04-05 2003-10-16 Olympus Corporation Zoom lens and electronic imaging apparatus using it
US7177094B2 (en) 2002-04-05 2007-02-13 Olympus Corporation Zoom lens, and electronic imaging system using the same
US7365910B2 (en) 2001-05-14 2008-04-29 Olympus Corporation Electronic image pickup system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH612767A5 (en) * 1975-08-06 1979-08-15 Bolex Int Sa Optical system having a lens and an attachment element

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1247678A (fr) * 1960-02-08 1960-12-02 Kamera & Kinowerke Dresden Veb Objectif lumineux de distance focale variable ayant au moins un intervalle de variation sextuple
GB1214341A (en) * 1968-06-06 1970-12-02 Rank Organisation Ltd Improvements in or relating to objectives of variable focal length

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7365910B2 (en) 2001-05-14 2008-04-29 Olympus Corporation Electronic image pickup system
US7436599B2 (en) 2001-05-14 2008-10-14 Olympus Corporation Electronic image pickup system
US7872806B2 (en) 2001-05-14 2011-01-18 Olympus Corporation Electronic image pickup system
US8094381B2 (en) 2001-05-14 2012-01-10 Olympus Corporation Electronic image pickup system
US8885262B2 (en) 2001-05-14 2014-11-11 Olympus Corporation Electronic image pickup system
US9274321B2 (en) 2001-05-14 2016-03-01 Olympus Corporation Electronic image pickup system
US9696524B2 (en) 2001-05-14 2017-07-04 Olympus Corporation Electronic image pickup system
US10031322B2 (en) 2001-05-14 2018-07-24 Olympus Corporation Electronic image pickup system
WO2003085438A1 (en) * 2002-04-05 2003-10-16 Olympus Corporation Zoom lens and electronic imaging apparatus using it
US7177094B2 (en) 2002-04-05 2007-02-13 Olympus Corporation Zoom lens, and electronic imaging system using the same

Also Published As

Publication number Publication date
DE2144941A1 (de) 1972-03-16
FR2106359A1 (enExample) 1972-05-05
FR2106359B1 (enExample) 1975-04-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee