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在电视摄象机的发展中,拍摄更为黑暗的场景是重要的课题之一。最近美国一公司已研制出在完全黑暗中进行拍摄的摄象机,它采用高灵敏度红外CCD,与排列在衬板上的数百个红外发光二极管的照明部件连为一体,前面装有阻挡可见光的滤波器,组成这种夜视摄象机,现已有两种型号:WV-CD 810和WV-CD 820。照明部件是以GaAlAs 为发光体的高亮度LED,指向角为50°(半幅值的全角),发射波长为950±50nm。LED 的衬板分为两部分倾斜安装,以扩展水平方向的指向性。
In the development of television cameras, shooting darker scenes is one of the important topics. Recently, a company in the United States has developed a camera that shoots in complete darkness. It uses a high-sensitivity infrared CCD that is integrated with the lighting components of hundreds of infrared LEDs arrayed on a backing plate with a visible front light barrier Of the filter to form the night vision camera, there are two models: WV-CD 810 and WV-CD 820. The lighting unit is a high-brightness LED with GaAlAs as a light emitter with a 50 ° pointing angle (full width at half maximum) and an emission wavelength of 950 ± 50 nm. LED liner is divided into two parts inclined to install, to expand the horizontal directionality.