GB2508076B - IR Zoom objective and thermal imager - Google Patents

IR Zoom objective and thermal imager

Info

Publication number
GB2508076B
GB2508076B GB1316583.2A GB201316583A GB2508076B GB 2508076 B GB2508076 B GB 2508076B GB 201316583 A GB201316583 A GB 201316583A GB 2508076 B GB2508076 B GB 2508076B
Authority
GB
United Kingdom
Prior art keywords
thermal imager
zoom objective
zoom
objective
imager
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.)
Active
Application number
GB1316583.2A
Other versions
GB201316583D0 (en
GB2508076A (en
Inventor
Gaengler Dietmar
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.)
Hensoldt Optronics GmbH
Original Assignee
Cassidian Optronics GmbH
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 Cassidian Optronics GmbH filed Critical Cassidian Optronics GmbH
Publication of GB201316583D0 publication Critical patent/GB201316583D0/en
Publication of GB2508076A publication Critical patent/GB2508076A/en
Application granted granted Critical
Publication of GB2508076B publication Critical patent/GB2508076B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G02B15/145—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 five groups only
    • G02B15/1451—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 five groups only the first group being positive
    • G02B15/145129—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 five groups only the first group being positive arranged +-+++
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/005—Diaphragms
    • G02B5/006—Diaphragms cooled
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/02—Diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Lenses (AREA)
GB1316583.2A 2012-09-19 2013-09-18 IR Zoom objective and thermal imager Active GB2508076B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012018441.7A DE102012018441B4 (en) 2012-09-19 2012-09-19 IR zoom lens and thermal imaging device

Publications (3)

Publication Number Publication Date
GB201316583D0 GB201316583D0 (en) 2013-10-30
GB2508076A GB2508076A (en) 2014-05-21
GB2508076B true GB2508076B (en) 2018-10-03

Family

ID=49552831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1316583.2A Active GB2508076B (en) 2012-09-19 2013-09-18 IR Zoom objective and thermal imager

Country Status (2)

Country Link
DE (1) DE102012018441B4 (en)
GB (1) GB2508076B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6595405B2 (en) * 2016-05-25 2019-10-23 富士フイルム株式会社 Imaging optical system, projection display device, and imaging device
JP6670174B2 (en) * 2016-05-25 2020-03-18 富士フイルム株式会社 Imaging optical system, projection display device, and imaging device
CN110716293B (en) * 2019-10-30 2022-02-08 凯迈（洛阳）测控有限公司 Miniaturized negative compensation type medium-wave refrigeration infrared continuous zooming optical system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444250A (en) * 1994-08-15 1995-08-22 Hughes Aircraft Company Optical warm stop with fresnel type reflective surface
US20040211907A1 (en) * 2003-04-25 2004-10-28 Wellman William H. Optical system for a wide field of view staring infrared sensor having improved optical symmetry
KR20090030309A (en) * 2006-06-16 2009-03-24 탈레스 Passive three-field optronic system
US20110052166A1 (en) * 2009-08-28 2011-03-03 Cornell Jim D Mid infrared spectral band continuous zoom system
CN102213822B (en) * 2011-07-12 2013-03-13 中国电子科技集团公司第十一研究所 Medium wave infrared continuous zoom lens

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2916862B1 (en) * 2007-05-30 2010-07-30 Sagem Defense Securite INFRARED CAMERA COMPRISING A HIGH-THRESHOLD OPTICAL ZOOM AND CORRESPONDING METHOD OF OBSERVING A SCENE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5444250A (en) * 1994-08-15 1995-08-22 Hughes Aircraft Company Optical warm stop with fresnel type reflective surface
US20040211907A1 (en) * 2003-04-25 2004-10-28 Wellman William H. Optical system for a wide field of view staring infrared sensor having improved optical symmetry
KR20090030309A (en) * 2006-06-16 2009-03-24 탈레스 Passive three-field optronic system
US20110052166A1 (en) * 2009-08-28 2011-03-03 Cornell Jim D Mid infrared spectral band continuous zoom system
CN102213822B (en) * 2011-07-12 2013-03-13 中国电子科技集团公司第十一研究所 Medium wave infrared continuous zoom lens

Also Published As

Publication number Publication date
GB201316583D0 (en) 2013-10-30
DE102012018441A1 (en) 2014-06-12
GB2508076A (en) 2014-05-21
DE102012018441B4 (en) 2020-08-06

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