The viking makes use of a built - in pulse infrared illuminator for added image clarity in total darkness 維京式采用了內(nèi)置式脈沖紅外照明燈為補(bǔ)充,在完全黑暗的情況下保證圖象的清晰度, 。
The same “ pulsing ” frequency that is invisible to human eyes infiltrates longer distances due to the infrared illuminator ' s quick energy bursts 由于紅外線照明燈的快速能量脈沖同樣的"脈沖"的次數(shù)太多,無形中提供人眼更長的觀測距離。