FR2380561A1 - Dispositif de prise de vue de television a bas niveau de lumiere et systeme comportant un tel dispositif - Google Patents
Dispositif de prise de vue de television a bas niveau de lumiere et systeme comportant un tel dispositifInfo
- Publication number
- FR2380561A1 FR2380561A1 FR7704191A FR7704191A FR2380561A1 FR 2380561 A1 FR2380561 A1 FR 2380561A1 FR 7704191 A FR7704191 A FR 7704191A FR 7704191 A FR7704191 A FR 7704191A FR 2380561 A1 FR2380561 A1 FR 2380561A1
- Authority
- FR
- France
- Prior art keywords
- image
- mirrors
- tube
- objective
- cassegrain objective
- 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
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
- 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
- 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
- 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
- G02B17/0884—Catadioptric systems having a pupil corrector
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Telescopes (AREA)
Abstract
Dispositif permettant d'utiliser une optique de grande focale et de grande ouverture avec des caractéristiques d'encombrement et de poids réduits. Il comporte une optique catadioptrique type Cassegrain telle que le plan focal 5 est situé entre le groupe dioptrique arrière 4 et le miroir principal 2 lequel est évidé pour laisser passer le tube 6. Une structure externe unique 9 supporte l'optique et le tube; le groupe dioptrique avant 1 est évidé pour recevoir, une structure interne 7 supportant les éléments optiques internes 3, 4, et un dispositif de mise au point 8 pour déplacer le miroir secondaire le long de l'axe optique Z. L'invention s'applique, en particulier, à la télévision de nuit.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7704191A FR2380561A1 (fr) | 1977-02-15 | 1977-02-15 | Dispositif de prise de vue de television a bas niveau de lumiere et systeme comportant un tel dispositif |
DE19782806204 DE2806204A1 (de) | 1977-02-15 | 1978-02-14 | Bildaufnahmevorrichtung zur gewinnung elektronischer bilder insbesondere bei geringer helligkeit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7704191A FR2380561A1 (fr) | 1977-02-15 | 1977-02-15 | Dispositif de prise de vue de television a bas niveau de lumiere et systeme comportant un tel dispositif |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2380561A1 true FR2380561A1 (fr) | 1978-09-08 |
FR2380561B1 FR2380561B1 (fr) | 1981-11-13 |
Family
ID=9186743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7704191A Granted FR2380561A1 (fr) | 1977-02-15 | 1977-02-15 | Dispositif de prise de vue de television a bas niveau de lumiere et systeme comportant un tel dispositif |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2806204A1 (fr) |
FR (1) | FR2380561A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2466786A1 (fr) * | 1979-10-05 | 1981-04-10 | Thomson Csf | Dispositif catadioptre et systeme comportant un tel dispositif |
EP0043341A1 (fr) * | 1980-06-26 | 1982-01-06 | KERN & CO. AG Werke für Präzisionsmechanik Optik und Elektronik | Objectif catadioptrique lumineux pour rayonnement infrarouge |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3823021A1 (de) * | 1988-07-07 | 1990-03-08 | Emo Elektronik Gmbh | Lasermess- und -nachrichtenobjektiv |
DE102006025328B4 (de) * | 2006-05-31 | 2019-09-05 | Diehl Defence Gmbh & Co. Kg | Multispektrale Abbildungsoptik, Suchkopf und Lenkflugkörper |
-
1977
- 1977-02-15 FR FR7704191A patent/FR2380561A1/fr active Granted
-
1978
- 1978-02-14 DE DE19782806204 patent/DE2806204A1/de not_active Ceased
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2466786A1 (fr) * | 1979-10-05 | 1981-04-10 | Thomson Csf | Dispositif catadioptre et systeme comportant un tel dispositif |
EP0027071A1 (fr) * | 1979-10-05 | 1981-04-15 | Thomson-Csf | Dispositif catadioptrique utilisable comme répondeur optique |
EP0043341A1 (fr) * | 1980-06-26 | 1982-01-06 | KERN & CO. AG Werke für Präzisionsmechanik Optik und Elektronik | Objectif catadioptrique lumineux pour rayonnement infrarouge |
Also Published As
Publication number | Publication date |
---|---|
FR2380561B1 (fr) | 1981-11-13 |
DE2806204A1 (de) | 1978-08-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |