GB1521087A - Electromagnetic radiation imaging apparatus - Google Patents
Electromagnetic radiation imaging apparatusInfo
- Publication number
- GB1521087A GB1521087A GB4238675A GB4238675A GB1521087A GB 1521087 A GB1521087 A GB 1521087A GB 4238675 A GB4238675 A GB 4238675A GB 4238675 A GB4238675 A GB 4238675A GB 1521087 A GB1521087 A GB 1521087A
- Authority
- GB
- United Kingdom
- Prior art keywords
- convex
- image
- imaging apparatus
- electromagnetic radiation
- radiation imaging
- 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
Links
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
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
- G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
- G02B17/0605—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
- G02B17/06—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror
- G02B17/0605—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors
- G02B17/061—Catoptric systems, e.g. image erecting and reversing system using mirrors only, i.e. having only one curved mirror using two curved mirrors on-axis systems with at least one of the mirrors having a central aperture
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Stereoscopic And Panoramic Photography (AREA)
Abstract
1521087 Reflecting objectives BRITISH AIRCRAFT CORP Ltd 20 Sept 1976 [16 Oct 1975] 42386/75 Heading G2J An electromagnetic radiation imaging apparatus comprises concave and convex reflecting surfaces (mirrors 2 and 1) which face each other and are coaxially mutually spaced to leave an annular radiation entrance whereby light from a distant object is reflected first by the convex and then by the concave surface to form a real image. The image may be between the reflectors, see Fig. 1; or may be behind the convex reflector (a central aperture being provided for passage of the rays); or may be behind the concave reflector (a central aperture being left for the passage of the rays and an auxilliary mirror being provided between the curved mirrors). The image may be observed via an eye-piece, or recorded on film, or impinged on a T.V. camera, or be traversed (scanned) by an array of sensors. The device is of particular use for surveillance of the horizon.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4238675A GB1521087A (en) | 1976-09-29 | 1976-09-29 | Electromagnetic radiation imaging apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4238675A GB1521087A (en) | 1976-09-29 | 1976-09-29 | Electromagnetic radiation imaging apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1521087A true GB1521087A (en) | 1978-08-09 |
Family
ID=10424190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4238675A Expired GB1521087A (en) | 1976-09-29 | 1976-09-29 | Electromagnetic radiation imaging apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1521087A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2487554A1 (en) * | 1980-07-28 | 1982-01-29 | American District Telegraph Co | PASSIVE DEVICE FOR INFRARED DETECTION OF INTRUSIONS |
GB2157844A (en) * | 1984-04-17 | 1985-10-30 | Recon Optical Inc | Panoramic unity vision system |
WO2008117023A2 (en) * | 2007-03-27 | 2008-10-02 | Dsam London Llp | Imaging system with an optical mirror arrangement and self-righting housing |
-
1976
- 1976-09-29 GB GB4238675A patent/GB1521087A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2487554A1 (en) * | 1980-07-28 | 1982-01-29 | American District Telegraph Co | PASSIVE DEVICE FOR INFRARED DETECTION OF INTRUSIONS |
GB2157844A (en) * | 1984-04-17 | 1985-10-30 | Recon Optical Inc | Panoramic unity vision system |
WO2008117023A2 (en) * | 2007-03-27 | 2008-10-02 | Dsam London Llp | Imaging system with an optical mirror arrangement and self-righting housing |
WO2008117023A3 (en) * | 2007-03-27 | 2008-11-13 | Dsam London Llp | Imaging system with an optical mirror arrangement and self-righting housing |
GB2461212A (en) * | 2007-03-27 | 2009-12-30 | Dsam London Llp | Optical arrangement |
GB2461212B (en) * | 2007-03-27 | 2012-04-04 | Dsam London Llp | Optical arrangement |
US8503074B2 (en) | 2007-03-27 | 2013-08-06 | Dsam London Llp | Imaging system with an optical mirror arrangement and self righting housing |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |