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将厚度为2mm的透明玻璃切割成与光屏尺寸大小相同的玻璃块。将玻璃块用钳子夹稳放到酒精灯上均匀烤热,再往烤热的玻璃一面均匀地涂上一层薄蜡,待其冷却后,毛玻璃光屏即告成功。
Transparent glass with a thickness of 2 mm was cut into glass blocks of the same size as the screen. The glass block was clamped with a pair of pliers and placed on an alcohol lamp. The glass was evenly coated with a thin layer of wax. After cooling, the frosted glass screen was successful.