The plate to be processed is modulated by ronchi raster and after developing and fixing two dimensional coding photograph is made.
将要处理的图像底片经过郎奇光栅的调制、显影、定影后得到二维的编码片。
2
When a thin plate is heated by a beam of modulated continuous laser, a temperature wave generates and propagates along the plate with amplitude decay and phase delay.
通过连续激光调制对薄板试样进行局部周期加热，采用红外扫描测温技术记录动态温度分布。
3
A new method is presented for making 2d rainbow holograms by using pre modulated holographic plate. The principle of this method and the related experiment are discussed.