GB859571A - Optical detector - Google Patents

Optical detector

Info

Publication number
GB859571A
GB859571A GB1409957A GB1409957A GB859571A GB 859571 A GB859571 A GB 859571A GB 1409957 A GB1409957 A GB 1409957A GB 1409957 A GB1409957 A GB 1409957A GB 859571 A GB859571 A GB 859571A
Authority
GB
United Kingdom
Prior art keywords
detector
infra
red
light
reticule
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
GB1409957A
Inventor
Clyde Winger Harris
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.)
Aerojet Rocketdyne Inc
Original Assignee
Aerojet General Corp
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 Aerojet General Corp filed Critical Aerojet General Corp
Priority to GB1409957A priority Critical patent/GB859571A/en
Publication of GB859571A publication Critical patent/GB859571A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/787—Systems for determining direction or deviation from predetermined direction using rotating reticles producing a direction-dependent modulation characteristic

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

859,571. Detecting infra-red radiation. AEROJET - GENERAL CORPORATION. May 2, 1957, No. 14099/57. Class 40(3). [Also in Group XXI] A device for transforming an infra-red image into a visible image comprises means 11 for forming the infra-red image in the device, an infra-red detector 21 for controlling an electric current and between this image and detector a moving reticule 15 having regions 17 transparent to both infra-red and visible light. A germanium coated mirror 20 between reticule 15 and detector 21 reflects visible light to an observer 24 but transmits infra-red light to the detector. The signal from the detector 21 is amplified at 22 to modulate the light beam of a neon lamp 25. The reticule may be rotated or reciprocated. In a modification, Figs. 5 and 8, the device is associated with a gunsight, the reticule 42 comprising an opaque disc with pairs of slots duplicated 180 degrees apart, so that light from a lamp 51 is modulated partly by the activation of a detector 46 with light through one slot and partly by the corresponding slot through which it passes. Specification 859,572 is also referred to.
GB1409957A 1957-05-02 1957-05-02 Optical detector Expired GB859571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1409957A GB859571A (en) 1957-05-02 1957-05-02 Optical detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1409957A GB859571A (en) 1957-05-02 1957-05-02 Optical detector

Publications (1)

Publication Number Publication Date
GB859571A true GB859571A (en) 1961-01-25

Family

ID=10034962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1409957A Expired GB859571A (en) 1957-05-02 1957-05-02 Optical detector

Country Status (1)

Country Link
GB (1) GB859571A (en)

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