GB9313297D0 - Zoom lens - Google Patents

Zoom lens

Info

Publication number
GB9313297D0
GB9313297D0 GB939313297A GB9313297A GB9313297D0 GB 9313297 D0 GB9313297 D0 GB 9313297D0 GB 939313297 A GB939313297 A GB 939313297A GB 9313297 A GB9313297 A GB 9313297A GB 9313297 D0 GB9313297 D0 GB 9313297D0
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.)
Withdrawn
Application number
GB939313297A
Other versions
GB2280278A (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.)
Hanwha Aerospace Co Ltd
Original Assignee
Samsung Aerospace Industries Ltd
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 Samsung Aerospace Industries Ltd filed Critical Samsung Aerospace Industries Ltd
Priority to GB9313297A priority Critical patent/GB2280278A/en
Priority to GB9612851A priority patent/GB2301452B/en
Priority to GB9612866A priority patent/GB2301456B/en
Priority to GB9612852A priority patent/GB2301453B/en
Priority to GB9612853A priority patent/GB2301454B/en
Priority to GB9612865A priority patent/GB2301455B/en
Priority to DE4321989A priority patent/DE4321989C2/en
Publication of GB9313297D0 publication Critical patent/GB9313297D0/en
Publication of GB2280278A publication Critical patent/GB2280278A/en
Withdrawn legal-status Critical Current

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
    • G02B15/143—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 three groups only
    • G02B15/1431—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 three groups only the first group being positive
    • G02B15/143103—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 three groups only the first group being positive arranged ++-
GB9313297A 1993-06-28 1993-06-28 Three group zoom lens Withdrawn GB2280278A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB9313297A GB2280278A (en) 1993-06-28 1993-06-28 Three group zoom lens
GB9612851A GB2301452B (en) 1993-06-28 1993-06-28 Three group zoom lens system
GB9612866A GB2301456B (en) 1993-06-28 1993-06-28 Three group zoom lens system
GB9612852A GB2301453B (en) 1993-06-28 1993-06-28 Three group zoom lens system
GB9612853A GB2301454B (en) 1993-06-28 1993-06-28 Three group zoom lens system
GB9612865A GB2301455B (en) 1993-06-28 1993-06-28 Three group zoom lens system
DE4321989A DE4321989C2 (en) 1993-06-28 1993-07-01 Zoom lens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9313297A GB2280278A (en) 1993-06-28 1993-06-28 Three group zoom lens
DE4321989A DE4321989C2 (en) 1993-06-28 1993-07-01 Zoom lens

Publications (2)

Publication Number Publication Date
GB9313297D0 true GB9313297D0 (en) 1993-08-11
GB2280278A GB2280278A (en) 1995-01-25

Family

ID=25927311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9313297A Withdrawn GB2280278A (en) 1993-06-28 1993-06-28 Three group zoom lens

Country Status (2)

Country Link
DE (1) DE4321989C2 (en)
GB (1) GB2280278A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0172009B1 (en) * 1994-09-26 1999-05-01 이대원 Wide angle zoom lens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2798090B2 (en) * 1988-02-10 1998-09-17 オリンパス光学工業株式会社 Focusing method of zoom lens
US4983027A (en) * 1988-03-31 1991-01-08 Minolta Camera Kabushiki Kaisha Compact zoom lens system with a high zoom ratio
US4978204A (en) * 1988-09-08 1990-12-18 Asahi Kogaku Kogyo Kabushik Kaisha High zoom-ratio zoom lens system for use in a compact camera
FR2646522B1 (en) * 1989-04-28 1993-08-27 Asahi Optical Co Ltd HIGH FOCAL VARIATION LENS SYSTEM FOR COVERING THE WIDE ANGLE INTERVAL FOR A COMPACT TYPE CAMERA
JPH0331809A (en) * 1989-06-29 1991-02-12 Olympus Optical Co Ltd Zoom lens

Also Published As

Publication number Publication date
DE4321989C2 (en) 1998-11-19
DE4321989A1 (en) 1995-01-12
GB2280278A (en) 1995-01-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)