一谈到窃听,人们就会想到安放在电话、饰物等物品中形态各异的电子窃听器。而绝对想象不到用光搞窃听。光怎么能窃听呢?其实,光窃听就是用光制成的窃听设备——“激光窃听器”。它是利用激光发生器产生的一束极细的红外光,射到被窃听房间的玻璃上,房间里的人谈话的声波冲击着玻璃,使玻璃发生轻微振动,红外激光从玻璃上反射回来,便带回了室内声波振 When it comes to eavesdropping, people will think of electronic bugs in various forms placed on items such as telephones and accessories. Absolutely cannot imagine using light to engage in eavesdropping. How can light eavesdrop? In fact, light eavesdropping is the use of light eavesdropping equipment - “laser tap.” It uses a laser beam generator to produce a very thin infrared light, which is shot on the glass of the eavesdropping room. The sound waves of people talking in the room impact the glass, causing the glass to vibrate slightly, and the infrared laser is reflected from the glass. Bring back the indoor acoustic wave vibration