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浙江大学光仪系和浙江省中医院共同协作研制成YA—1型高亮度X线片暗室灯,该灯比一直沿用至今的暗室红灯的照度高一百倍,既不增加X线底片的灰雾度,又可同时阅览报刊资料。多少年来,医用X线片的冲洗是在所谓安全红灯所发出亮度极低的暗室内进行的,使操作人员不能正确识别鉴定底片冲洗的质量,并易引起视力的严重影响及发生一些操作事故。上述研制单位的科技人员,依据光度色度学原理,正确地解决了人眼的视觉特性和X光底片光谱响应特性的关系,选用特定截止滤光片作为分光元件,代替常规安全
Zhejiang University Department of Optometry and Zhejiang Provincial Hospital of Traditional Chinese Medicine jointly developed a YA-1-type high-brightness X-ray darkroom lamp, the light than the darkroom has been using a red light hundred times higher than the illumination, neither increase the X-ray film Fog, but also read newspapers and periodicals. For many years, the medical X-ray rinse in the so-called security red light emitted very low darkroom carried out, so that operators can not correctly identify the identification of negative film rinse quality and easy to cause serious visual acuity and the occurrence of some operational accidents . The scientific and technical personnel of the above research institutes have correctly solved the relationship between the visual characteristics of the human eye and the spectral response characteristics of the X-ray film according to the principle of photometric colorimetry, and selected the special cut-off filter as the spectroscopic element instead of the conventional safety