在感光材料的生产过程中,从乳剂制备、涂布干燥、整理裁切、打孔、印字、直到检验、包装等工序都必须在暗室内进行。为了在暗室工作中便于运输、操作、检验以及冲洗、印放等,利用感光缺口,安装一些与片种相适应的具有一定颜色和亮度的灯光设备。这种灯光设备一般称为“暗室照明”或“安全灯”。 In the photosensitive material production process, from the emulsion preparation, coating and drying, finishing cutting, drilling, printing, testing, packaging and other processes must be carried out in a dark room. In order to facilitate the transport of darkroom work, operation, inspection and washing, printing and so on, the use of light-sensitive gap, the installation of a number of species compatible with a certain color and brightness of lighting equipment. Such lighting equipment is commonly referred to as “darkroom lighting” or “safety light.”