GB1324351A - Surveilling apparatus responsive to electromagnetic radiation - Google Patents

Surveilling apparatus responsive to electromagnetic radiation

Info

Publication number
GB1324351A
GB1324351A GB1324351DA GB1324351A GB 1324351 A GB1324351 A GB 1324351A GB 1324351D A GB1324351D A GB 1324351DA GB 1324351 A GB1324351 A GB 1324351A
Authority
GB
United Kingdom
Prior art keywords
image
disc
paths
apparatus responsive
curvature
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
Application number
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 Optronics Ltd
Original Assignee
Thales Optronics Ltd
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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Publication of GB1324351A publication Critical patent/GB1324351A/en
Expired 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
    • G02B17/0884—Catadioptric systems having a pupil corrector
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H04N3/08—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector
    • H04N3/09—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector for electromagnetic radiation in the invisible region, e.g. infrared

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Radiation Pyrometers (AREA)

Abstract

1324351 Optical apparatus BARR & STROUD Ltd 21 Sept 1967 [30 Dec 1966] 58322/66 Heading G2J Apparatus responsive to electro-magnetic radiation, particularly infra-red, comprises a part-spherical reflecting means 1 including an objective mirror 7 and correcting meniscus elements 8 which receive an infra-red signal 2 and form a part-spherical image I. Arranged on the centre of curvature C of the mirror 7 and image I is the shaft 9 of a disc 4 having a radius R equal to the radius of curvature of the image I. The disc has three radiation transmission paths 10, 11, 12 connected to a radiation transmission path 13 extending along the shaft 9 to a radiometer 6, each of these paths being formed by optical fibres. An arcuate shield extends for 240 degrees around the disc 4 so that as the latter is rotated the image I is scanned through 120 degrees by the three paths 10, 11, 12 in succession.
GB1324351D 1966-12-30 1966-12-30 Surveilling apparatus responsive to electromagnetic radiation Expired GB1324351A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5832266 1966-12-30

Publications (1)

Publication Number Publication Date
GB1324351A true GB1324351A (en) 1973-07-25

Family

ID=10481321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1324351D Expired GB1324351A (en) 1966-12-30 1966-12-30 Surveilling apparatus responsive to electromagnetic radiation

Country Status (2)

Country Link
FR (1) FR1605271A (en)
GB (1) GB1324351A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950056A (en) * 1987-11-27 1990-08-21 Gec-Marconi Limited Optical system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4950056A (en) * 1987-11-27 1990-08-21 Gec-Marconi Limited Optical system

Also Published As

Publication number Publication date
FR1605271A (en) 1974-01-25

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed