WO2009109979A3 - Compact infra-red lens assembly - Google Patents

Compact infra-red lens assembly Download PDF

Info

Publication number
WO2009109979A3
WO2009109979A3 PCT/IL2009/000256 IL2009000256W WO2009109979A3 WO 2009109979 A3 WO2009109979 A3 WO 2009109979A3 IL 2009000256 W IL2009000256 W IL 2009000256W WO 2009109979 A3 WO2009109979 A3 WO 2009109979A3
Authority
WO
WIPO (PCT)
Prior art keywords
window
elements
lens assembly
lens
infra
Prior art date
Application number
PCT/IL2009/000256
Other languages
French (fr)
Other versions
WO2009109979A2 (en
Inventor
Eliyahu Bender
Nissim Asida
Original Assignee
Ophir 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
Application filed by Ophir Optronics Ltd. filed Critical Ophir Optronics Ltd.
Publication of WO2009109979A2 publication Critical patent/WO2009109979A2/en
Publication of WO2009109979A3 publication Critical patent/WO2009109979A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation
    • 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
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/008—Mountings, adjusting means, or light-tight connections, for optical elements with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Lenses (AREA)

Abstract

An infra red camera assembly, with elements efficient in raw material use, simple to produce and which provides a high level of performance. The assembly uses a three element design, with a main lens, and with both the entrance window and the detector array protection window having some optical power, such that the refractive power of the lens assembly comprises up to four surfaces spread over three elements. The lens assembly comprises (i) a front element which has one surface flat, and which can thus also serve as the input window, (ii) a rear element which has one surface flat, and which can thus also serve as the detector window, and (iii) a single central lens element which, because of the combined use of the two other optically active window elements, does not require any steeply formed surfaces, such that it is also material efficient and economical to produce.
PCT/IL2009/000256 2008-03-06 2009-03-08 Compact infra-red lens assembly WO2009109979A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6444708P 2008-03-06 2008-03-06
US61/064,447 2008-03-06

Publications (2)

Publication Number Publication Date
WO2009109979A2 WO2009109979A2 (en) 2009-09-11
WO2009109979A3 true WO2009109979A3 (en) 2009-11-12

Family

ID=41000401

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2009/000256 WO2009109979A2 (en) 2008-03-06 2009-03-08 Compact infra-red lens assembly

Country Status (1)

Country Link
WO (1) WO2009109979A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2771731B1 (en) 2011-10-25 2020-01-15 Daylight Solutions Inc. Infrared imaging microscope
US9823451B2 (en) 2013-04-12 2017-11-21 Daylight Solutions, Inc. Infrared refractive objective lens assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408100A (en) * 1991-12-24 1995-04-18 Hughes Missile Systems Company Chromatic radiance attenuator
EP1077386A1 (en) * 1999-03-03 2001-02-21 Mitsubishi Denki Kabushiki Kaisha Infrared optical system for infrared camera
US6236501B1 (en) * 1998-05-08 2001-05-22 Pilkington Pe Limited Three element objective lens system using Germanium lens element
FR2824985A1 (en) * 2001-05-18 2002-11-22 Sagem Electro optical sensor lens mount has lateral motion for scanned intermediate images
US20060285003A1 (en) * 2005-06-17 2006-12-21 Hon Hai Precision Industry Co., Ltd. Apparatus for increasing field of view of an optical system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5408100A (en) * 1991-12-24 1995-04-18 Hughes Missile Systems Company Chromatic radiance attenuator
US6236501B1 (en) * 1998-05-08 2001-05-22 Pilkington Pe Limited Three element objective lens system using Germanium lens element
EP1077386A1 (en) * 1999-03-03 2001-02-21 Mitsubishi Denki Kabushiki Kaisha Infrared optical system for infrared camera
FR2824985A1 (en) * 2001-05-18 2002-11-22 Sagem Electro optical sensor lens mount has lateral motion for scanned intermediate images
US20060285003A1 (en) * 2005-06-17 2006-12-21 Hon Hai Precision Industry Co., Ltd. Apparatus for increasing field of view of an optical system

Also Published As

Publication number Publication date
WO2009109979A2 (en) 2009-09-11

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