photolyten.光解质
photon.照片v.拍照
photo-electric optical lever光电光杠杆
photogrammetric intervalometer空中摄影定时器
photoconductive optical sensor光导式光传感器
photoelectric proximity switch光电式接近开关
photoelectric particle counter光电粒子计数器
photoelectric lighting control光电照明控制
photometric absolute magnitude绝对测光星等
photorealistic image synthesis似真图像合成
photovoltaic energy conversion光生伏打能量转换