HK78884A - Improvements in or relating to zoom lenses - Google Patents

Improvements in or relating to zoom lenses

Info

Publication number
HK78884A
HK78884A HK788/84A HK78884A HK78884A HK 78884 A HK78884 A HK 78884A HK 788/84 A HK788/84 A HK 788/84A HK 78884 A HK78884 A HK 78884A HK 78884 A HK78884 A HK 78884A
Authority
HK
Hong Kong
Prior art keywords
relating
zoom lenses
zoom
lenses
Prior art date
Application number
HK788/84A
Other languages
English (en)
Inventor
Jacob Moskovich
Original Assignee
Vivitar Corp
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 Vivitar Corp filed Critical Vivitar Corp
Publication of HK78884A publication Critical patent/HK78884A/xx

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
    • G02B15/22—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 with movable lens means specially adapted for focusing at close distances

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
HK788/84A 1979-10-05 1984-10-18 Improvements in or relating to zoom lenses HK78884A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8201079A 1979-10-05 1979-10-05
US06/189,591 US4462664A (en) 1979-10-05 1980-10-01 Zoom lens

Publications (1)

Publication Number Publication Date
HK78884A true HK78884A (en) 1984-10-26

Family

ID=26766661

Family Applications (1)

Application Number Title Priority Date Filing Date
HK788/84A HK78884A (en) 1979-10-05 1984-10-18 Improvements in or relating to zoom lenses

Country Status (6)

Country Link
US (1) US4462664A (de)
DE (1) DE3037524A1 (de)
GB (1) GB2062890B (de)
HK (1) HK78884A (de)
MY (1) MY8500746A (de)
SG (1) SG51384G (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758073A (en) * 1980-10-01 1988-07-19 Vivitar Corporation Zoom lens
JPH0629905B2 (ja) * 1984-07-09 1994-04-20 キヤノン株式会社 小型のズ−ムレンズ
US5054898A (en) * 1984-11-26 1991-10-08 Canon Kabushiki Kaisha Compact high-range varifocal objectives
JPH071335B2 (ja) * 1985-05-31 1995-01-11 オリンパス光学工業株式会社 望遠ズ−ムレンズ
US5225927A (en) * 1988-10-28 1993-07-06 Asahi Kogaku Kogyo K.K. Real image type finder having cemented lens with at least one resin lens element
US4992809A (en) * 1988-10-28 1991-02-12 Asahi Kogaku Kogyo Kabushiki Kaisha Zoom finder system
JP3174100B2 (ja) * 1991-09-02 2001-06-11 オリンパス光学工業株式会社 小型のズームレンズ
JP3330980B2 (ja) * 1991-10-21 2002-10-07 旭光学工業株式会社 ズームレンズ
WO2001027677A1 (fr) * 1999-10-14 2001-04-19 Matsushita Electric Industrial Co., Ltd. Objectif zoom et camera video le comprenant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1120271A (fr) * 1955-01-24 1956-07-03 Objectif à longueur focale variable

Also Published As

Publication number Publication date
DE3037524A1 (de) 1981-04-16
GB2062890A (en) 1981-05-28
GB2062890B (en) 1984-03-28
MY8500746A (en) 1985-12-31
SG51384G (en) 1985-03-29
US4462664A (en) 1984-07-31

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