FR2355305A1 - Objectif pour rayonnement infra-rouge - Google Patents

Objectif pour rayonnement infra-rouge

Info

Publication number
FR2355305A1
FR2355305A1 FR7617960A FR7617960A FR2355305A1 FR 2355305 A1 FR2355305 A1 FR 2355305A1 FR 7617960 A FR7617960 A FR 7617960A FR 7617960 A FR7617960 A FR 7617960A FR 2355305 A1 FR2355305 A1 FR 2355305A1
Authority
FR
France
Prior art keywords
infrared radiation
minor
spherical
reflecting
correction system
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.)
Granted
Application number
FR7617960A
Other languages
English (en)
Other versions
FR2355305B3 (fr
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.)
Sagem SA
Original Assignee
Recherches et Etudes dOptique et de Sciences Connexes SA REOSC
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 Recherches et Etudes dOptique et de Sciences Connexes SA REOSC filed Critical Recherches et Etudes dOptique et de Sciences Connexes SA REOSC
Priority to FR7617960A priority Critical patent/FR2355305A1/fr
Publication of FR2355305A1 publication Critical patent/FR2355305A1/fr
Application granted granted Critical
Publication of FR2355305B3 publication Critical patent/FR2355305B3/fr
Granted 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
    • G02B13/14—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
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0804—Catadioptric systems using two curved mirrors
    • G02B17/0808—Catadioptric systems using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0852—Catadioptric systems having a field corrector only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems
    • G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne un objectif. L'objectif comporte un premier miroir A qui reçoit les rayons incidents et les réfléchit vers un second miroir B qui les renvoie vers un système correcteur C disposé dans une ouverture D au centre du premier miroir ou disposé en amont ou en aval de cette ouverture. Le second miroir B a une surface sphérique, étant constitué par exemple par un miroir plan en verre ou par une lentille divergente en germanium. Application aux objectifs pour rayonnement infra-rouge
FR7617960A 1976-06-14 1976-06-14 Objectif pour rayonnement infra-rouge Granted FR2355305A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7617960A FR2355305A1 (fr) 1976-06-14 1976-06-14 Objectif pour rayonnement infra-rouge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7617960A FR2355305A1 (fr) 1976-06-14 1976-06-14 Objectif pour rayonnement infra-rouge

Publications (2)

Publication Number Publication Date
FR2355305A1 true FR2355305A1 (fr) 1978-01-13
FR2355305B3 FR2355305B3 (fr) 1979-07-20

Family

ID=9174336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7617960A Granted FR2355305A1 (fr) 1976-06-14 1976-06-14 Objectif pour rayonnement infra-rouge

Country Status (1)

Country Link
FR (1) FR2355305A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045138A1 (fr) * 1980-07-24 1982-02-03 Pilkington P.E. Limited Système optique infrarouge
EP0051969A1 (fr) * 1980-11-07 1982-05-19 Honeywell Inc. Correction de la courbure de champ dans des systèmes optiques
EP0080566A1 (fr) * 1981-11-27 1983-06-08 Texas Instruments Incorporated Système optique compact pourvu d'un écran thermique de haute efficacité
FR2685788A1 (fr) * 1991-12-31 1993-07-02 Thomson Csf Camera infrarouge a systeme optique auto-athermalise.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411499A (en) 1980-11-07 1983-10-25 Honeywell Inc. Compact optical system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045138A1 (fr) * 1980-07-24 1982-02-03 Pilkington P.E. Limited Système optique infrarouge
EP0051969A1 (fr) * 1980-11-07 1982-05-19 Honeywell Inc. Correction de la courbure de champ dans des systèmes optiques
EP0080566A1 (fr) * 1981-11-27 1983-06-08 Texas Instruments Incorporated Système optique compact pourvu d'un écran thermique de haute efficacité
FR2685788A1 (fr) * 1991-12-31 1993-07-02 Thomson Csf Camera infrarouge a systeme optique auto-athermalise.
EP0553583A1 (fr) * 1991-12-31 1993-08-04 Thomson-Csf Caméra infrarouge à système optique auto-thermalisé

Also Published As

Publication number Publication date
FR2355305B3 (fr) 1979-07-20

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Legal Events

Date Code Title Description
ST Notification of lapse