全息图的假彩色编码及狭缝宽度的选择

The Pseudocolor Coding Methods in the Rainbow Holography and the Slit Width Design

在三基色原理的基础上，分析了彩虹全息图的两种假彩色编码方法—多狭缝编码方法和参考光编码方法；根据这两种编码方法通过依次改变狭缝之间的距离或参考光之间的角度可以制作所需颜色的假彩色彩虹全息图，同时对狭缝的宽度进行了设计，通过优化设计，实际的狭缝宽度为５～８ｍｍ．

Based on the principle of three basic colors, the commonly used pseudocolor coding methods, the multislits coding method and the reference beam coding method, are analyzed. According to them, the pseudocolor rainbow holograms with desired colors can be made by changing the width between the slits or the angle between the reference light beams. The optimized slit width is given, which is commonly 5mm to 8mm.