SE7909707L - COMBINED RADIATION - Google Patents

COMBINED RADIATION

Info

Publication number
SE7909707L
SE7909707L SE7909707A SE7909707A SE7909707L SE 7909707 L SE7909707 L SE 7909707L SE 7909707 A SE7909707 A SE 7909707A SE 7909707 A SE7909707 A SE 7909707A SE 7909707 L SE7909707 L SE 7909707L
Authority
SE
Sweden
Prior art keywords
lens
laser
infra
objective
pair
Prior art date
Application number
SE7909707A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
E S Camerion
R L Fisher
Original Assignee
Ferranti 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 Ferranti Ltd filed Critical Ferranti Ltd
Publication of SE7909707L publication Critical patent/SE7909707L/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/14—Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
    • G02B23/04—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors for the purpose of beam splitting or combining, e.g. fitted with eyepieces for more than one observer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4811—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver
    • G01S7/4812—Constructional features, e.g. arrangements of optical elements common to transmitter and receiver transmitted and received beams following a coaxial path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/20—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Lenses (AREA)

Abstract

The optical system comprises an astronomical lens [11] and a field lens [12]. Mirrors [16,17] between the objective [10] and field lens fold the optic axis [14] of the telescope. The system uses a laser and refraction elements operative in the range of 0.5-14 micrometres. Infra-red radiation emitted from objects is received at the objective [10] and traverses to the infra-red imager [20]. Focussing of the laser along each path from source to return is maintained using a zinc sulphide lens [10,30,36] arranged in a pair, parallel to another constituent zinc selenide lens. The laser is brought to focus at the field element using hermetically sealed lens pair [60,61] spaced to withstand the power density of the laser beam.
SE7909707A 1978-11-24 1979-11-23 COMBINED RADIATION SE7909707L (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB7846039A GB2323681B (en) 1978-11-24 1978-11-24 Combined laser transmitting and/or receiving system and infra red imaging system
DE2948831A DE2948831C1 (en) 1978-11-24 1979-12-05 Combined laser system and infra-red imaging system for e.g. surveillance aid
AU53734/79A AU697324B1 (en) 1978-11-24 1979-12-14 Combined laser transmitting and/or receiving system and infra red imaging system

Publications (1)

Publication Number Publication Date
SE7909707L true SE7909707L (en) 1998-10-02

Family

ID=27154887

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7909707A SE7909707L (en) 1978-11-24 1979-11-23 COMBINED RADIATION

Country Status (5)

Country Link
AU (1) AU697324B1 (en)
DE (1) DE2948831C1 (en)
FR (2) FR2930999A1 (en)
GB (1) GB2323681B (en)
SE (1) SE7909707L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008050796A1 (en) * 2008-10-08 2010-04-15 Diehl Bgt Defence Gmbh & Co. Kg Optics for an infrared camera
CN109450562B (en) * 2018-11-23 2021-02-05 长春理工大学 System and method for testing comprehensive performance of off-axis dual-waveband laser communication

Also Published As

Publication number Publication date
AU697324B1 (en) 1998-10-01
GB2323681A (en) 1998-09-30
GB2323681B (en) 1999-01-13
DE2948831C1 (en) 1999-08-19
FR2929718A1 (en) 2009-10-09
FR2930999A1 (en) 2009-11-13
GB7846039D0 (en) 1998-05-27

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