天气预报 > 自然 > 光晕现象
光晕现象
更新时间: 2021-01-06 07:28:47  

1、光晕现象是指在曝光拍摄过程中,强光投射到胶片上时,透过胶片乳剂中在片基表面进行反射,从而致使图像发晕。为防止这种现象发生,有时在片基和乳剂层之间涂上着色层,显影时可去掉,或是在胶片片基上涂上灰色,称此为防光晕层。

2、茅盾 《子夜》十四:“房里那盏大电灯就灭了,只剩书桌上那台灯映出一圈黄色的光晕。” 徐迟 《黄山记》:“它有彩色光晕如镜框,中间一明镜可显见人形。”

关键词: 光晕 现象

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