MY8400358A - Improvements in zoom lens - Google Patents

Improvements in zoom lens

Info

Publication number
MY8400358A
MY8400358A MY358/84A MY8400358A MY8400358A MY 8400358 A MY8400358 A MY 8400358A MY 358/84 A MY358/84 A MY 358/84A MY 8400358 A MY8400358 A MY 8400358A MY 8400358 A MY8400358 A MY 8400358A
Authority
MY
Malaysia
Prior art keywords
zoom lens
zoom
lens
Prior art date
Application number
MY358/84A
Inventor
Ellis Israel Betensky
Melvyn Howard Kreitzer
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 MY8400358A publication Critical patent/MY8400358A/en

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)
MY358/84A 1978-09-11 1984-12-30 Improvements in zoom lens MY8400358A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US94153078A 1978-09-11 1978-09-11
US7113279A 1979-09-06 1979-09-06

Publications (1)

Publication Number Publication Date
MY8400358A true MY8400358A (en) 1984-12-31

Family

ID=26751880

Family Applications (1)

Application Number Title Priority Date Filing Date
MY358/84A MY8400358A (en) 1978-09-11 1984-12-30 Improvements in zoom lens

Country Status (4)

Country Link
GB (1) GB2033604B (en)
HK (1) HK3684A (en)
MY (1) MY8400358A (en)
SG (1) SG52383G (en)

Families Citing this family (2)

* 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
JP3330980B2 (en) * 1991-10-21 2002-10-07 旭光学工業株式会社 Zoom lens

Also Published As

Publication number Publication date
GB2033604A (en) 1980-05-21
SG52383G (en) 1984-04-19
HK3684A (en) 1984-01-20
GB2033604B (en) 1983-05-11

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