IN154900B - - Google Patents

Info

Publication number
IN154900B
IN154900B IN1085/CAL/81A IN1085CA1981A IN154900B IN 154900 B IN154900 B IN 154900B IN 1085CA1981 A IN1085CA1981 A IN 1085CA1981A IN 154900 B IN154900 B IN 154900B
Authority
IN
India
Application number
IN1085/CAL/81A
Other languages
English (en)
Inventor
Iain Alexander Neil
Original Assignee
Barr & Stroud 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 Barr & Stroud Ltd filed Critical Barr & Stroud Ltd
Publication of IN154900B publication Critical patent/IN154900B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Lenses (AREA)
  • Telescopes (AREA)
  • Compositions Of Oxide Ceramics (AREA)
IN1085/CAL/81A 1980-10-08 1981-09-28 IN154900B (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8032396 1980-10-08

Publications (1)

Publication Number Publication Date
IN154900B true IN154900B (cs) 1984-12-22

Family

ID=10516546

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1085/CAL/81A IN154900B (cs) 1980-10-08 1981-09-28

Country Status (10)

Country Link
US (1) US4469396A (cs)
BE (1) BE890654A (cs)
CH (1) CH656013A5 (cs)
DE (1) DE3138817A1 (cs)
FR (1) FR2491634A1 (cs)
IN (1) IN154900B (cs)
IT (1) IT1145115B (cs)
NL (1) NL8104195A (cs)
NO (1) NO157635C (cs)
SE (1) SE450670B (cs)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152227B (en) * 1982-01-14 1986-01-29 Barr & Stroud Ltd Infrared optical system
DE3342002A1 (de) * 1982-11-23 1984-05-30 Barr & Stroud Ltd., Glasgow, Scotland Mehrlinsiges objektiv zur verwendung im infraroten spektralbereich
US4542954A (en) * 1983-11-10 1985-09-24 The United States Of America As Represented By The Secretary Of The Army Wide angle lens for the infrared dedicatory clause
JPS6187116A (ja) * 1984-09-28 1986-05-02 Canon Inc 変倍光学系
DE3542502A1 (de) * 1985-12-02 1987-06-04 Elektro Optik Gmbh & Co Kg Thermograph mit umschaltung des bildwinkels
GB2194072B (en) * 1986-04-03 1990-03-21 Pilkington Perkin Elmer Ltd Athermalised optical beam expander
JP2679017B2 (ja) * 1986-12-27 1997-11-19 ミノルタ株式会社 ２焦点切替レンズ系
US5204774A (en) * 1991-12-06 1993-04-20 Varo Inc. Night vision goggle with improved optical system
US5229880A (en) * 1992-03-09 1993-07-20 Hughes Aircraft Company Three field of view refractive afocal telescope
US5548439A (en) * 1994-12-27 1996-08-20 Hughes Aircraft Company Three field of view refractive infrared telescope with fixed medium filed of view
RU2172971C2 (ru) * 1998-07-08 2001-08-27 Открытое Акционерное Общество "Пеленг" Инфракрасный телескоп с двумя увеличениями
JP4731110B2 (ja) * 2003-11-05 2011-07-20 カシオ計算機株式会社 携帯機器
US20060107580A1 (en) * 2004-11-22 2006-05-25 Thomas Mark A Scope with improved windage/elevation system
US20060107579A1 (en) * 2004-11-22 2006-05-25 Thomas Mark A Zoom scope with continuous main body
US20060254115A1 (en) * 2004-11-22 2006-11-16 Thomas Mark A Optical sight with side focus adjustment
EP2033037B1 (en) * 2005-01-26 2014-10-29 Leupold & Stevens, Inc. Scope with improved magnification system
US7880978B2 (en) * 2008-08-25 2011-02-01 Acm Projektentwicklung Gmbh Objective lens system
US8508864B2 (en) * 2008-08-25 2013-08-13 Acm Projektentwicklung Gmbh Objective lens system
RU2386156C1 (ru) * 2008-10-15 2010-04-10 Институт физики полупроводников СО РАН Оптическая система с вынесенными зрачками для инфракрасной области спектра
KR101706264B1 (ko) * 2009-12-03 2017-02-14 삼성전자주식회사 줌 렌즈 시스템
CN102213822B (zh) * 2011-07-12 2013-03-13 中国电子科技集团公司第十一研究所 一种中波红外连续变焦镜头
TWI461728B (zh) 2011-09-02 2014-11-21 Largan Precision Co Ltd 影像鏡組
US8988773B2 (en) 2012-09-28 2015-03-24 Raytheon Canada Limited Optical sighting device
TWI477806B (zh) 2014-01-08 2015-03-21 Largan Precision Co Ltd 光學攝像鏡頭、取像裝置及可攜裝置
JP6450073B2 (ja) * 2014-01-29 2019-01-09 日本放送協会 レンズアレイ
DE102015104323A1 (de) * 2015-03-23 2016-09-29 Carl Zeiss Smt Gmbh Zoomsystem mit austauschbaren optischen Elementen
US10003751B2 (en) 2016-05-25 2018-06-19 The United States Of America, As Represented By The Secretary Of The Army Multiple field of view dual band optics with integrated calibration source
US10761307B2 (en) 2016-12-06 2020-09-01 Raytheon Company Bypass optical switch and methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947084A (en) * 1975-02-28 1976-03-30 Hughes Aircraft Company Long-wave infrared afocal zoom telescope
US4397520A (en) * 1980-03-05 1983-08-09 Barr & Stroud Limited Afocal refractor telescopes
NL186880C (nl) * 1980-04-26 1991-03-18 Barr & Stroud Ltd Oculairlensstelsel.

Also Published As

Publication number Publication date
FR2491634A1 (fr) 1982-04-09
BE890654A (fr) 1982-02-01
CH656013A5 (de) 1986-05-30
IT8168244A0 (it) 1981-09-25
SE8105941L (sv) 1982-04-09
NO157635B (no) 1988-01-11
NL8104195A (nl) 1982-05-03
NO813395L (no) 1982-04-13
FR2491634B3 (cs) 1983-07-08
NO157635C (no) 1988-04-20
IT1145115B (it) 1986-11-05
SE450670B (sv) 1987-07-13
US4469396A (en) 1984-09-04
DE3138817A1 (de) 1982-05-19

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