机电部44所采用本所研制的红外LED和光敏三极管,利用红外控制技术、集成电路技术和固体开关技术综合设计而成的GCHB—1型冲床红外保安器于1990年7月24日通过了重庆市科委组织的鉴定。这种冲床红外保安器通过利用红外LED发出的几条红外光束组成的红外光幕控制冲床的滑块(当冲床的滑块向下运行时,若人手等物件遮挡红外光幕滑 Electromechanical Department 44 adopted by the Institute developed by the infrared LED and phototransistor, the use of infrared control technology, integrated circuit technology and solid state switching technology integrated design of the GCHB-1 punch infrared security device on July 24, 1990 by the Chongqing City Science and Technology Commission identified. This punch infrared security device through the use of infrared LED emits several infrared beams composed of infrared light curtain control punch (when the press slider running down, if the hand and other objects blocking the infrared screen slide