位于美国新泽西州普林斯顿市的RCA研究所利用对温度敏感的红外线探测器发展了一种能在一团漆黑中拍摄的电视摄象机。虽然这种摄象机目前还处于实验阶段,但在最近的一次表演中,它已证明能够认明人的双手的静脉结构和留在被手短暂接触过的物体上的指纹印的热轮廓。根据该研究所的工 The RCA Institute in Princeton, NJ, uses a temperature-sensitive infra-red detector to develop a television camera that shoots in darkness. Although the camera is still in experimental stages, it has been shown in recent performances to recognize the veins of human hands and the thermal profile of fingerprints left on objects briefly touched by the hand. According to the Institute’s work