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A laser warning receiver is a type of warning system used as a passive military defence. It detects, analyzes, and locates directions of laser emissions〔 ((PDF version ) 4.53 MB) 〕 from laser guidance systems and laser rangefinders. Then it alerts the crew and can start various countermeasures, like smoke screen, aerosol screen (e.g. Shtora), active laser self-defence weapon with laser dazzler (LSDW, used on Type 99 China main battle tank〔http://www.globalsecurity.org/military/world/china/type-99.htm〕), laser jammer, etc. Detectors used in LWR are usually based on a semiconductor photodetector array, which is typically cryogenically or thermal-electric cooled. Sometimes avalanche photodiodes (APD), photoconductivity, photoelectromagnetic, or photodiffusion devices are used even without cooling.〔http://www.boselec.com/products/detirlwr.html〕 Some devices detect only the main beam of foreign lasers while others detect even scattered rays. == Produced by == * BAE Systems * Thales Optronics * Przemysłowe Centrum Optyki〔(PCO "SSP-1 OBRA-3" )〕 * Elbit Systems〔()〕 * Global Industrial Defence Solutions〔()〕 * Metrodat〔(LAWAREC - Laser and Laser/Radar Warning Receivers ) Metrodat〕 * SAAB Grintek Defence〔(LEDS-50 ) 〕 * ASELSAN〔(ASELSAN Laser Warning Receiver (LIAS) ) ASELSAN LIAS〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Laser warning receiver」の詳細全文を読む スポンサード リンク
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