CA953556A - Variable-magnifying-power lens system - Google Patents

Variable-magnifying-power lens system

Info

Publication number
CA953556A
CA953556A CA092,361A CA92361A CA953556A CA 953556 A CA953556 A CA 953556A CA 92361 A CA92361 A CA 92361A CA 953556 A CA953556 A CA 953556A
Authority
CA
Canada
Prior art keywords
magnifying
variable
lens system
power lens
power
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
CA092,361A
Other languages
English (en)
Inventor
Nobunao Mikami
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Application granted granted Critical
Publication of CA953556A publication Critical patent/CA953556A/en
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Lens Barrels (AREA)
CA092,361A 1969-09-08 1970-09-04 Variable-magnifying-power lens system Expired CA953556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7057069A JPS5713849B1 (de) 1969-09-08 1969-09-08

Publications (1)

Publication Number Publication Date
CA953556A true CA953556A (en) 1974-08-27

Family

ID=13435325

Family Applications (1)

Application Number Title Priority Date Filing Date
CA092,361A Expired CA953556A (en) 1969-09-08 1970-09-04 Variable-magnifying-power lens system

Country Status (5)

Country Link
US (1) US3728010A (de)
JP (1) JPS5713849B1 (de)
CA (1) CA953556A (de)
FR (1) FR2070676B1 (de)
GB (1) GB1319639A (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491242A (de) * 1972-04-17 1974-01-08
US4037937A (en) * 1971-10-22 1977-07-26 Canon Kabushiki Kaisha Variable magnification lens system using symmetric lens of variable focal length
US3905685A (en) * 1972-10-12 1975-09-16 Xerox Corp Zoom lens for fixed conjugates
US3883228A (en) * 1973-07-09 1975-05-13 Minnesota Mining & Mfg Variable magnification zoom lens
US3865470A (en) * 1973-09-04 1975-02-11 Xerox Corp Variable magnification lens system
US3912374A (en) * 1974-10-17 1975-10-14 Xerox Corp Six component zoom lens
US4061419A (en) * 1976-03-03 1977-12-06 Xerox Corporation Variable magnification lens system
US4149774A (en) * 1977-11-14 1979-04-17 Fuji Photo Optical Co., Ltd. Zoom lens system
US4406522A (en) * 1980-09-02 1983-09-27 Minnesota Mining & Manufacturing Company Variable magnification lens
JPS5767909A (en) * 1980-10-15 1982-04-24 Canon Inc Variable magnification optical system
JPS5768810A (en) * 1980-10-18 1982-04-27 Asahi Optical Co Ltd Variable nagnification lens system for copying
JPS58156140U (ja) * 1982-04-15 1983-10-18 株式会社小松製作所 油圧駆動車両のエンジン制御装置
JPS58156136U (ja) * 1982-04-15 1983-10-18 株式会社小松製作所 油圧駆動車両のエンジン制御装置
JPS5964810A (ja) * 1982-10-05 1984-04-12 Canon Inc 変倍投影装置
JPS6026128A (ja) * 1983-07-19 1985-02-09 Seirei Ind Co Ltd アクセル自動調節装置
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
DK75688A (da) * 1988-02-15 1989-08-16 Oce Helioprint As Reprografisk linsesystem og kamera omfattende dette
JP3301884B2 (ja) * 1995-03-24 2002-07-15 株式会社ニコン リレー光学系
US5894371A (en) * 1997-06-06 1999-04-13 Alliedsignal, Inc. Focus mechanism for varifocal lens
JP2004012825A (ja) * 2002-06-07 2004-01-15 Fuji Photo Optical Co Ltd 投影光学系およびそれを用いた投影露光装置
CN103207446A (zh) * 2013-04-23 2013-07-17 中国科学院西安光学精密机械研究所 一种用于微光探测的光学耦合系统
JP6560984B2 (ja) * 2013-12-11 2019-08-14 オリンパス株式会社 変倍光学系及びそれを備えた撮像装置、撮像システム

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2356620A (en) * 1940-02-13 1944-08-22 Schade Karl Werner Photographic justifying apparatus
US2481639A (en) * 1945-08-23 1949-09-13 Eastman Kodak Co High-aperture copying lens system
US2766658A (en) * 1955-05-20 1956-10-16 Schwesinger Gerhard Variable focal length focusing lens system and device therefor
US3127466A (en) * 1961-04-12 1964-03-31 American Optical Corp Variable magnification lens system for microscopes
GB1173962A (en) * 1967-03-14 1969-12-10 Hilger & Watts Ltd Improvements in Optical Profile Projection Systems
US3552832A (en) * 1969-10-27 1971-01-05 Rank Organisation Ltd Optical profile projection systems

Also Published As

Publication number Publication date
FR2070676B1 (de) 1974-06-21
US3728010A (en) 1973-04-17
FR2070676A1 (de) 1971-09-17
JPS5713849B1 (de) 1982-03-19
GB1319639A (en) 1973-06-06
DE2044514A1 (de) 1971-04-08

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