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GB2141260B - Zoom lens assembly - Google Patents

Zoom lens assembly

Info

Publication number
GB2141260B
GB2141260B GB08412291A GB8412291A GB2141260B GB 2141260 B GB2141260 B GB 2141260B GB 08412291 A GB08412291 A GB 08412291A GB 8412291 A GB8412291 A GB 8412291A GB 2141260 B GB2141260 B GB 2141260B
Authority
GB
United Kingdom
Prior art keywords
zoom lens
lens assembly
assembly
zoom
lens
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
GB08412291A
Other versions
GB2141260A (en
GB8412291D0 (en
Inventor
Iain Alexander Neil
William Mccreath
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics 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
Priority claimed from GB838315878A external-priority patent/GB8315878D0/en
Application filed by Thales Optronics Ltd filed Critical Thales Optronics Ltd
Priority to GB08412291A priority Critical patent/GB2141260B/en
Publication of GB8412291D0 publication Critical patent/GB8412291D0/en
Publication of GB2141260A publication Critical patent/GB2141260A/en
Application granted granted Critical
Publication of GB2141260B publication Critical patent/GB2141260B/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
    • G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
    • 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
    • G02B15/142—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 two groups only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Lenses (AREA)
  • Lens Barrels (AREA)
GB08412291A 1983-06-09 1984-05-14 Zoom lens assembly Expired GB2141260B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08412291A GB2141260B (en) 1983-06-09 1984-05-14 Zoom lens assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838315878A GB8315878D0 (en) 1983-06-09 1983-06-09 Zoom lens assembly
GB08412291A GB2141260B (en) 1983-06-09 1984-05-14 Zoom lens assembly

Publications (3)

Publication Number Publication Date
GB8412291D0 GB8412291D0 (en) 1984-06-20
GB2141260A GB2141260A (en) 1984-12-12
GB2141260B true GB2141260B (en) 1986-12-10

Family

ID=26286342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08412291A Expired GB2141260B (en) 1983-06-09 1984-05-14 Zoom lens assembly

Country Status (1)

Country Link
GB (1) GB2141260B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6324214A (en) * 1986-05-16 1988-02-01 ウイリアム　ペントン　ネイサン Optical apparatus
FR2614702B1 (en) * 1987-04-29 1989-06-09 Angenieux P Ets VARIABLE FOCAL LENS DEVICE AND ITS CONTROL METHOD
FR2616231B1 (en) * 1987-06-04 1990-11-16 Trt Telecom Radio Electr VARIABLE FOCAL OPTICAL SYSTEM AND ASSOCIATED ELECTROMECHANICAL CONTROL
IL89301A (en) * 1989-02-15 1993-04-04 Electro Optics Ind Ltd Zoom system
JPH07248445A (en) * 1994-03-14 1995-09-26 Sony Corp Zoom lens device
JP3185908B2 (en) * 1994-06-14 2001-07-11 ノーリツ鋼機株式会社 Photo printing equipment
KR100216087B1 (en) * 1994-07-26 1999-08-16 미따라이 하지메 Optical machinery and tools
US6922283B2 (en) 1999-10-26 2005-07-26 Meade Instruments Corporation Systems and methods for automated telescope alignment and orientation
CN1153080C (en) 1998-10-26 2004-06-09 米德仪器公司 Fully automated telescope system with distributed intelligence
US7227682B2 (en) 2005-04-08 2007-06-05 Panavision International, L.P. Wide-range, wide-angle compound zoom with simplified zooming structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611639C3 (en) * 1976-03-19 1982-12-09 Jos. Schneider, Optische Werke, AG, 6550 Bad Kreuznach Control device for lenses with variable focal length
GB1559514A (en) * 1976-10-02 1980-01-23 Pilkington Perkin Elmer Ltd Infra-red zoom lenses
US4443076A (en) * 1981-10-20 1984-04-17 Mitutoyo Mfg. Co., Ltd. Projecting apparatus
GB2121560B (en) * 1982-05-08 1985-10-30 Pa Management Consult Control system for two relatively movable members

Also Published As

Publication number Publication date
GB2141260A (en) 1984-12-12
GB8412291D0 (en) 1984-06-20

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Legal Events

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

Effective date: 20000514