GB1386175A - Lenses - Google Patents

Lenses

Info

Publication number
GB1386175A
GB1386175A GB2579272A GB2579272A GB1386175A GB 1386175 A GB1386175 A GB 1386175A GB 2579272 A GB2579272 A GB 2579272A GB 2579272 A GB2579272 A GB 2579272A GB 1386175 A GB1386175 A GB 1386175A
Authority
GB
United Kingdom
Prior art keywords
inner member
outer members
magnification
symmetrically arranged
members
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
GB2579272A
Other languages
English (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.)
Rank Organization Ltd
Original Assignee
Rank Organization 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 Rank Organization Ltd filed Critical Rank Organization Ltd
Priority to GB2579272A priority Critical patent/GB1386175A/en
Priority to DD17108873A priority patent/DD104858A5/xx
Priority to JP6104373A priority patent/JPS4952634A/ja
Priority to IT6862973A priority patent/IT986404B/it
Priority to CA172,992A priority patent/CA979697A/en
Priority to FR7320070A priority patent/FR2186664B1/fr
Priority to SE7307828A priority patent/SE391589B/xx
Priority to DE19732328286 priority patent/DE2328286A1/de
Publication of GB1386175A publication Critical patent/GB1386175A/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)
GB2579272A 1972-06-02 1972-06-02 Lenses Expired GB1386175A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB2579272A GB1386175A (en) 1972-06-02 1972-06-02 Lenses
DD17108873A DD104858A5 (it) 1972-06-02 1973-05-25
JP6104373A JPS4952634A (it) 1972-06-02 1973-06-01
IT6862973A IT986404B (it) 1972-06-02 1973-06-01 Sistema ottico particolarmente obiettivo per riproduzioni
CA172,992A CA979697A (en) 1972-06-02 1973-06-01 Optical system
FR7320070A FR2186664B1 (it) 1972-06-02 1973-06-01
SE7307828A SE391589B (sv) 1972-06-02 1973-06-04 Kopieringsobjektiv
DE19732328286 DE2328286A1 (de) 1972-06-02 1973-06-04 Repro-objektiv

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2579272A GB1386175A (en) 1972-06-02 1972-06-02 Lenses

Publications (1)

Publication Number Publication Date
GB1386175A true GB1386175A (en) 1975-03-05

Family

ID=10233385

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2579272A Expired GB1386175A (en) 1972-06-02 1972-06-02 Lenses

Country Status (8)

Country Link
JP (1) JPS4952634A (it)
CA (1) CA979697A (it)
DD (1) DD104858A5 (it)
DE (1) DE2328286A1 (it)
FR (1) FR2186664B1 (it)
GB (1) GB1386175A (it)
IT (1) IT986404B (it)
SE (1) SE391589B (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849128A1 (de) * 1977-11-15 1979-05-17 Gretag Ag Zoom-objektiv
DE3118561A1 (de) * 1980-05-13 1982-04-15 Asahi Kogaku Kogyo K.K., Tokyo Kopieroptik mit variabler brennweite
DE3544148A1 (de) * 1984-12-13 1986-06-26 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Objektiv fuer das kopieren mit variabler abbildungsgroesse

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144229A (en) * 1975-06-05 1976-12-11 Konishiroku Photo Ind Co Ltd Bright wide-angle lens with many surrounding quantities of light
US4061419A (en) * 1976-03-03 1977-12-06 Xerox Corporation Variable magnification lens system
US4056308A (en) * 1976-03-03 1977-11-01 Xerox Corporation Variable focal length reflector lens system
JPS5767909A (en) * 1980-10-15 1982-04-24 Canon Inc Variable magnification optical system
JPS6218514A (ja) * 1985-07-18 1987-01-27 Konishiroku Photo Ind Co Ltd 複写用ズ−ムレンズ系
JPH071338B2 (ja) * 1986-02-03 1995-01-11 旭光学工業株式会社 複写用変倍レンズ
JP2623620B2 (ja) * 1987-12-19 1997-06-25 ミノルタ株式会社 ズームレンズ系
DE4005300A1 (de) * 1990-02-20 1991-08-22 Leica Camera Gmbh Kameraobjektiv

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849128A1 (de) * 1977-11-15 1979-05-17 Gretag Ag Zoom-objektiv
DE3118561A1 (de) * 1980-05-13 1982-04-15 Asahi Kogaku Kogyo K.K., Tokyo Kopieroptik mit variabler brennweite
DE3544148A1 (de) * 1984-12-13 1986-06-26 Asahi Kogaku Kogyo K.K., Tokio/Tokyo Objektiv fuer das kopieren mit variabler abbildungsgroesse
DE3544148C2 (it) * 1984-12-13 1991-05-08 Asahi Kogaku Kogyo K.K., Tokio/Tokyo, Jp

Also Published As

Publication number Publication date
DE2328286A1 (de) 1973-12-13
FR2186664B1 (it) 1977-09-23
DD104858A5 (it) 1974-03-20
IT986404B (it) 1975-01-30
SE391589B (sv) 1977-02-21
JPS4952634A (it) 1974-05-22
FR2186664A1 (it) 1974-01-11
CA979697A (en) 1975-12-16

Similar Documents

Publication Publication Date Title
US2847907A (en) Variable focal-length objectives
GB1386175A (en) Lenses
US5054896A (en) Continuously focusable microscope incorporating an afocal variator optical system
GB1430311A (en) Telephoto lens systems
US2778272A (en) Optical objective system device of variable focal length
US3990785A (en) Anamorphic zoom lens
US4676581A (en) Infra-red lenses
US3353891A (en) Zoom lens system having front mounted axially movable aperture stop to control numerical aperture during magnification change
GB931063A (en) Photographic objective
GB900249A (en) Improvements in and relating to varifocal lenses
GB720984A (en) Improvements in and relating to optical system of variable focal length
US3143590A (en) Zoom lens
US2594020A (en) Wide-angle photographic objective
EP0225824A2 (en) A high relative aperture objective lens system with compound focusing
GB1229227A (it)
US3597048A (en) Varifocal objective with movable lens component of positive refractivity
US3065671A (en) Optical objective
GB1008309A (en) Variable focal length lens system
GB1403915A (en) High aperture objective of the extended gauss-type
GB2089064A (en) Zoom lens having four groups
GB1092677A (en) Varifocal objective system
GB1470199A (en) Objectives
US5173727A (en) Zoom viewfinder
GB1388081A (en) Lens assembly
GB1076789A (en) Photographic objective of continuously variable focal length

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee