FR2456960A1 - Objectif catadioptrique a champ plan et grande ouverture et application dudit objectif dans un projecteur d'image notamment en couleur - Google Patents

Objectif catadioptrique a champ plan et grande ouverture et application dudit objectif dans un projecteur d'image notamment en couleur

Info

Publication number
FR2456960A1
FR2456960A1 FR7912730A FR7912730A FR2456960A1 FR 2456960 A1 FR2456960 A1 FR 2456960A1 FR 7912730 A FR7912730 A FR 7912730A FR 7912730 A FR7912730 A FR 7912730A FR 2456960 A1 FR2456960 A1 FR 2456960A1
Authority
FR
France
Prior art keywords
lens
glass
mirror
field curvature
triplet
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
FR7912730A
Other languages
English (en)
Other versions
FR2456960B1 (fr
Inventor
Claude Hily
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.)
Laboratoires dElectronique Philips SAS
Original Assignee
Laboratoires dElectronique et de Physique Appliquee
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 Laboratoires dElectronique et de Physique Appliquee filed Critical Laboratoires dElectronique et de Physique Appliquee
Priority to FR7912730A priority Critical patent/FR2456960A1/fr
Publication of FR2456960A1 publication Critical patent/FR2456960A1/fr
Application granted granted Critical
Publication of FR2456960B1 publication Critical patent/FR2456960B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G02B17/0884—Catadioptric systems having a pupil corrector

Landscapes

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

Abstract

L'OBJECTIF CATADIOPTRIQUE EST DU GENRE COMPORTANT UN MIROIR CONCAVE IMMERGE DANS UN MATERIAU REFRINGENT ET UN SYSTEME DIOPTRIQUE CORRIGEANT L'ABERRATION SPHERIQUE DUDIT MIROIR. IL EST MUNI D'UN SYSTEME OPTIQUE CORRIGEANT LA COURBURE DE CHAMP DU MIROIR CONCAVE. CE SYSTEME EST CONSTITUE D'UNE LENTILLE PLAN CONVEXE ET D'UNE LENTILLE D'AIR COMPORTANT UNE FACE SPHERIQUE TAILLEE DANS LA MASSE IMMERGENTE DU MIROIR. L'OBJECTIF EST APPLIQUE A UN PROJECTEUR D'IMAGES DE TELEVISION. POUR CELA LE TUBE IMAGE DE TELEVISION EST INTRODUIT DANS UN ORIFICE TAILLE DANS LE SYSTEME CORRIGEANT L'ABERRATION SPHERIQUE DU MIROIR, L'ECRAN LUMINESCENT DUDIT TUBE VENANT COINCIDER AVEC LE CHAMP PLAN DE L'OBJECTIF. APPLICATION: PROJECTION D'IMAGES DE TELEVISION.
FR7912730A 1979-05-18 1979-05-18 Objectif catadioptrique a champ plan et grande ouverture et application dudit objectif dans un projecteur d'image notamment en couleur Granted FR2456960A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7912730A FR2456960A1 (fr) 1979-05-18 1979-05-18 Objectif catadioptrique a champ plan et grande ouverture et application dudit objectif dans un projecteur d'image notamment en couleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7912730A FR2456960A1 (fr) 1979-05-18 1979-05-18 Objectif catadioptrique a champ plan et grande ouverture et application dudit objectif dans un projecteur d'image notamment en couleur

Publications (2)

Publication Number Publication Date
FR2456960A1 true FR2456960A1 (fr) 1980-12-12
FR2456960B1 FR2456960B1 (fr) 1982-05-14

Family

ID=9225647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912730A Granted FR2456960A1 (fr) 1979-05-18 1979-05-18 Objectif catadioptrique a champ plan et grande ouverture et application dudit objectif dans un projecteur d'image notamment en couleur

Country Status (1)

Country Link
FR (1) FR2456960A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475020A2 (fr) * 1990-08-28 1992-03-18 International Business Machines Corporation Lentille avec champ compensé
WO2007050169A1 (fr) * 2005-10-25 2007-05-03 Hewlett-Packard Development Company, L.P. Systeme et procede de projection

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2229302A (en) * 1936-12-14 1941-01-21 Emil Busch Projecting television image
DE904602C (de) * 1941-08-30 1954-02-22 Zeiss Carl Fa Objektiv
US3022708A (en) * 1957-12-16 1962-02-27 James G Baker Correcting optical system
GB1068389A (en) * 1964-04-27 1967-05-10 Parsons & Co Sir Howard G Improvements in and relating to optical systems of the schmidt type

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2229302A (en) * 1936-12-14 1941-01-21 Emil Busch Projecting television image
DE904602C (de) * 1941-08-30 1954-02-22 Zeiss Carl Fa Objektiv
US3022708A (en) * 1957-12-16 1962-02-27 James G Baker Correcting optical system
GB1068389A (en) * 1964-04-27 1967-05-10 Parsons & Co Sir Howard G Improvements in and relating to optical systems of the schmidt type

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0475020A2 (fr) * 1990-08-28 1992-03-18 International Business Machines Corporation Lentille avec champ compensé
EP0475020A3 (en) * 1990-08-28 1992-05-06 International Business Machines Corporation Field compensated lens
WO2007050169A1 (fr) * 2005-10-25 2007-05-03 Hewlett-Packard Development Company, L.P. Systeme et procede de projection

Also Published As

Publication number Publication date
FR2456960B1 (fr) 1982-05-14

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse