The viking makes use of a built - in pulse infrared illuminator for added image clarity in total darkness 维京式采用了内置式脉冲红外照明灯为补充,在完全黑暗的情况下保证图象的清晰度, 。
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The same “ pulsing ” frequency that is invisible to human eyes infiltrates longer distances due to the infrared illuminator ' s quick energy bursts 由于红外线照明灯的快速能量脉冲同样的"脉冲"的次数太多,无形中提供人眼更长的观测距离。