FR2873211B1 - DEVICE FOR OBSERVING OR DETECTING A SCENE OR OBJECT WITH REDUCED RETROFLEXION - Google Patents

DEVICE FOR OBSERVING OR DETECTING A SCENE OR OBJECT WITH REDUCED RETROFLEXION

Info

Publication number
FR2873211B1
FR2873211B1 FR0015117A FR0015117A FR2873211B1 FR 2873211 B1 FR2873211 B1 FR 2873211B1 FR 0015117 A FR0015117 A FR 0015117A FR 0015117 A FR0015117 A FR 0015117A FR 2873211 B1 FR2873211 B1 FR 2873211B1
Authority
FR
France
Prior art keywords
retroflexion
observing
scene
detecting
reduced
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 - Fee Related
Application number
FR0015117A
Other languages
French (fr)
Other versions
FR2873211A1 (en
Inventor
Jean Luc Paradis
Joel Chablat
Jacques Vesque
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.)
Direction General pour lArmement DGA
Etat Francais
Original Assignee
Direction General pour lArmement DGA
Etat Francais
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 Direction General pour lArmement DGA, Etat Francais filed Critical Direction General pour lArmement DGA
Priority to FR0015117A priority Critical patent/FR2873211B1/en
Publication of FR2873211A1 publication Critical patent/FR2873211A1/en
Application granted granted Critical
Publication of FR2873211B1 publication Critical patent/FR2873211B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02B13/16—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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0018—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for preventing ghost images
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/003—Light absorbing elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
FR0015117A 2000-11-23 2000-11-23 DEVICE FOR OBSERVING OR DETECTING A SCENE OR OBJECT WITH REDUCED RETROFLEXION Expired - Fee Related FR2873211B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0015117A FR2873211B1 (en) 2000-11-23 2000-11-23 DEVICE FOR OBSERVING OR DETECTING A SCENE OR OBJECT WITH REDUCED RETROFLEXION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0015117A FR2873211B1 (en) 2000-11-23 2000-11-23 DEVICE FOR OBSERVING OR DETECTING A SCENE OR OBJECT WITH REDUCED RETROFLEXION

Publications (2)

Publication Number Publication Date
FR2873211A1 FR2873211A1 (en) 2006-01-20
FR2873211B1 true FR2873211B1 (en) 2006-12-22

Family

ID=35427916

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0015117A Expired - Fee Related FR2873211B1 (en) 2000-11-23 2000-11-23 DEVICE FOR OBSERVING OR DETECTING A SCENE OR OBJECT WITH REDUCED RETROFLEXION

Country Status (1)

Country Link
FR (1) FR2873211B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4814620A (en) * 1987-12-01 1989-03-21 Honeywell Inc. Tilted array with parallel cold shield
US4972085A (en) * 1989-09-14 1990-11-20 General Electric Company Cold shielding of infrared detectors
JPH05273491A (en) * 1992-03-25 1993-10-22 Toshiba Corp Photodetector
US6028671A (en) * 1996-01-31 2000-02-22 General Scanning, Inc. Method and system for suppressing unwanted reflections in an optical system
FR2772919B1 (en) * 1997-12-23 2000-03-17 Thomson Csf INFRARED IMAGER WITH QUANTUM STRUCTURE OPERATING AT AMBIENT TEMPERATURE

Also Published As

Publication number Publication date
FR2873211A1 (en) 2006-01-20

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Legal Events

Date Code Title Description
FC Favourable decision of inpi director general on an application for restauration.
RN Application for restoration
ST Notification of lapse

Effective date: 20051230

ST Notification of lapse

Effective date: 20150731