NL7512031A - Zoom-lens. - Google Patents

Zoom-lens.

Info

Publication number
NL7512031A
NL7512031A NL7512031A NL7512031A NL7512031A NL 7512031 A NL7512031 A NL 7512031A NL 7512031 A NL7512031 A NL 7512031A NL 7512031 A NL7512031 A NL 7512031A NL 7512031 A NL7512031 A NL 7512031A
Authority
NL
Netherlands
Prior art keywords
zoom lens
zoom
lens
Prior art date
Application number
NL7512031A
Other languages
English (en)
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of NL7512031A publication Critical patent/NL7512031A/nl

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
    • 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
    • G02B15/146—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 more than five groups

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Hydrogenated Pyridines (AREA)
NL7512031A 1974-10-17 1975-10-13 Zoom-lens. NL7512031A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515766A US3912374A (en) 1974-10-17 1974-10-17 Six component zoom lens

Publications (1)

Publication Number Publication Date
NL7512031A true NL7512031A (nl) 1976-04-21

Family

ID=24052650

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7512031A NL7512031A (nl) 1974-10-17 1975-10-13 Zoom-lens.

Country Status (7)

Country Link
US (1) US3912374A (nl)
JP (1) JPS5944602B2 (nl)
CA (1) CA1041336A (nl)
DE (1) DE2546040C2 (nl)
FR (1) FR2288323A1 (nl)
GB (1) GB1519300A (nl)
NL (1) NL7512031A (nl)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4149774A (en) * 1977-11-14 1979-04-17 Fuji Photo Optical Co., Ltd. Zoom lens system
JPS5768810A (en) * 1980-10-18 1982-04-27 Asahi Optical Co Ltd Variable nagnification lens system for copying
JPS62166008A (ja) * 1986-01-17 1987-07-22 Nippon Steel Corp 竪形圧延機のロ−ル組替用スピンドル退避装置
US4812021A (en) * 1987-10-07 1989-03-14 Xerox Corporation Wide angle zoom lens
JP2562636B2 (ja) * 1987-12-25 1996-12-11 富士写真光機株式会社 複写用変倍レンズ系
CN110941086B (zh) * 2019-12-19 2021-12-28 福建福光股份有限公司 一种超短型低畸变微光成像光学系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713849B1 (nl) * 1969-09-08 1982-03-19
US3687522A (en) * 1971-02-01 1972-08-29 Ilex Optical Co Inc Variable magnification lens system for finite conjugate distances
US3865470A (en) * 1973-09-04 1975-02-11 Xerox Corp Variable magnification lens system

Also Published As

Publication number Publication date
GB1519300A (en) 1978-07-26
FR2288323A1 (fr) 1976-05-14
JPS5944602B2 (ja) 1984-10-31
DE2546040C2 (de) 1984-11-22
US3912374A (en) 1975-10-14
JPS5165649A (nl) 1976-06-07
FR2288323B1 (nl) 1982-03-26
DE2546040A1 (de) 1976-04-22
CA1041336A (en) 1978-10-31

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed