FR3089307B1 - Composant de tête hémisphérique à images parasites réduites - Google Patents

Composant de tête hémisphérique à images parasites réduites Download PDF

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Publication number
FR3089307B1
FR3089307B1 FR1872221A FR1872221A FR3089307B1 FR 3089307 B1 FR3089307 B1 FR 3089307B1 FR 1872221 A FR1872221 A FR 1872221A FR 1872221 A FR1872221 A FR 1872221A FR 3089307 B1 FR3089307 B1 FR 3089307B1
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France
Prior art keywords
head component
revolution
symmetry
axis
component
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
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FR1872221A
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English (en)
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FR3089307A1 (fr
Inventor
Paul Thibout
Gautier Senechal
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.)
Thales SA
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Thales SA
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Publication date
Application filed by Thales SA filed Critical Thales SA
Priority to FR1872221A priority Critical patent/FR3089307B1/fr
Publication of FR3089307A1 publication Critical patent/FR3089307A1/fr
Application granted granted Critical
Publication of FR3089307B1 publication Critical patent/FR3089307B1/fr
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
    • 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
    • G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
    • G02B17/086—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors wherein the system is made of a single block of optical material, e.g. solid catadioptric systems
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

L’invention concerne un composant de tête monopupille (10)- à champ d’entrée hyper hémisphérique quasi afocal au voisinage du champ de rayon angulaire 90°,- à surface d’entrée (11) réfractive,- à face de sortie (12) concave, à zone centrale (122) réfractive et zone périphérique (121) réflective désignée miroir primaire, et comportant un miroir secondaire (13) asphérique, - à axe de symétrie de révolution (zz’). Le composant de tête est réalisé dans un bloc de matériau optique transparent, et il comporte une barrière (1000) située sur l’axe de symétrie de révolution (zz’) et traversant le composant de part en part, de manière à :- minimiser l’interception de faisceaux utiles incidents sur la surface d’entrée (11) et qui sortent par la zone centrale réfractive (122) de la face de sortie après double réflexion dans ledit composant, sans traverser l’axe de symétrie de révolution, et- maximiser l’interception de faisceaux parasites incidents sur la barrière. Figure pour l’abrégé : Fig. 3
FR1872221A 2018-12-04 2018-12-04 Composant de tête hémisphérique à images parasites réduites Active FR3089307B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1872221A FR3089307B1 (fr) 2018-12-04 2018-12-04 Composant de tête hémisphérique à images parasites réduites

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1872221A FR3089307B1 (fr) 2018-12-04 2018-12-04 Composant de tête hémisphérique à images parasites réduites

Publications (2)

Publication Number Publication Date
FR3089307A1 FR3089307A1 (fr) 2020-06-05
FR3089307B1 true FR3089307B1 (fr) 2021-05-07

Family

ID=66690469

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1872221A Active FR3089307B1 (fr) 2018-12-04 2018-12-04 Composant de tête hémisphérique à images parasites réduites

Country Status (1)

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FR (1) FR3089307B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1303027A (fr) 1961-07-17 1962-09-07 Zd Y Elektrotepelnych Zarizeni Dispositif pour chauffage par induction à basse température
JP3690733B2 (ja) * 2001-02-09 2005-08-31 シャープ株式会社 撮像装置
JP3377995B1 (ja) * 2001-11-29 2003-02-17 株式会社立山アールアンドディ パノラマ撮像レンズ
EP1369734B1 (fr) * 2002-06-05 2006-07-19 Raytheon Company Système optique avec lentille d'imagerie catadioptrique à trou centrale
IL150746A0 (en) * 2002-07-15 2003-02-12 Odf Optronics Ltd Optical lens providing omni-directional coverage and illumination
FR3015696B1 (fr) * 2013-12-20 2016-02-05 Thales Sa Module optique d'imagerie a champ hyper hemispherique et distorsion controlee, compatible d'un environnement exterieur

Also Published As

Publication number Publication date
FR3089307A1 (fr) 2020-06-05

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