IN162311B - - Google Patents
Info
- Publication number
- IN162311B IN162311B IN1445/CAL/83A IN1445CA1983A IN162311B IN 162311 B IN162311 B IN 162311B IN 1445CA1983 A IN1445CA1983 A IN 1445CA1983A IN 162311 B IN162311 B IN 162311B
- Authority
- IN
- India
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
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- 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8233434 | 1982-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
IN162311B true IN162311B (sv) | 1988-04-30 |
Family
ID=10534455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN1445/CAL/83A IN162311B (sv) | 1982-11-23 | 1983-11-23 |
Country Status (3)
Country | Link |
---|---|
US (1) | US4632498A (sv) |
DE (1) | DE3342002A1 (sv) |
IN (1) | IN162311B (sv) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4802717A (en) * | 1986-04-21 | 1989-02-07 | Hughes Aircraft Company | Infrared afocal zoom telescope |
US4832472A (en) * | 1987-07-17 | 1989-05-23 | Lockheed Missiles & Space Company, Inc. | Mapping lens |
IL89301A (en) * | 1989-02-15 | 1993-04-04 | Electro Optics Ind Ltd | Zoom system |
GB2244344B (en) * | 1990-05-18 | 1993-09-29 | Gec Ferranti Defence Syst | Infra-red zoom lens |
US5313330A (en) * | 1992-08-31 | 1994-05-17 | U.S. Precision Lens Incorporated | Zoom projection lens systems |
JP3365606B2 (ja) * | 1997-01-30 | 2003-01-14 | 富士写真光機株式会社 | 赤外線ズームレンズ |
US7345277B2 (en) * | 2000-08-09 | 2008-03-18 | Evan Zhang | Image intensifier and LWIR fusion/combination system |
US7092150B1 (en) | 2003-12-11 | 2006-08-15 | Computer Optics, Inc | Optically compensated infrared zoom lens having a single movable lens carriage and no aspheric lenses |
DE102007015896B4 (de) * | 2007-04-02 | 2008-12-18 | Diehl Bgt Defence Gmbh & Co. Kg | Teleoptik für den infraroten Spektalbereich |
US7672045B2 (en) * | 2007-08-23 | 2010-03-02 | Goodrich Corporation | Compact two-element infrared objective lens and IR or thermal sight for weapon having viewing optics |
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 |
US7961382B2 (en) * | 2009-08-28 | 2011-06-14 | Corning Incorporated | Mid infrared spectral band continuous zoom system |
DE102009045970B4 (de) * | 2009-10-23 | 2020-09-17 | Carl Zeiss Optronics Gmbh | Wärmebildgerät |
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 |
JP2015215478A (ja) * | 2014-05-12 | 2015-12-03 | セイコーエプソン株式会社 | 投写レンズ及びプロジェクター |
US11340436B2 (en) | 2018-02-12 | 2022-05-24 | Iain A. Neil | Objective lenses having multiple focal lengths and a small focal-length ratio |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2908199A (en) * | 1957-05-03 | 1959-10-13 | Edward K Kaprelian | Variable focal length lens system |
US3947084A (en) * | 1975-02-28 | 1976-03-30 | Hughes Aircraft Company | Long-wave infrared afocal zoom telescope |
GB1559514A (en) * | 1976-10-02 | 1980-01-23 | Pilkington Perkin Elmer Ltd | Infra-red zoom lenses |
JPS53135658A (en) * | 1977-04-30 | 1978-11-27 | Asahi Optical Co Ltd | Zoom lens including ultraawide lens |
US4469396A (en) * | 1980-10-08 | 1984-09-04 | Barr & Stroud Limited | Afocal dual magnification refractor telescopes |
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1983
- 1983-11-22 DE DE19833342002 patent/DE3342002A1/de not_active Withdrawn
- 1983-11-23 IN IN1445/CAL/83A patent/IN162311B/en unknown
-
1985
- 1985-09-13 US US06/783,312 patent/US4632498A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4632498A (en) | 1986-12-30 |
DE3342002A1 (de) | 1984-05-30 |