一种制作多色彩全息图的新方法

本文首先提出了一种制作二维透射物彩虹全息图的新方法，即利用一专门设计的全息光学元件──色编码板，采用单光束制作所需物体的彩虹全息图；在此基础上，通过对色编码板的进一步理论设计，制作了一组对应不同主波长的色编码板，实现了记录物体的多色彩虹再现全息图。实验结果表明，此方案简便易行，光路布置灵活性高，且能有效地消除纵向色差的影响，特别适合于模压全息图制造中母全息图的拍摄，并降低了对环境稳定性的要求。

A new method of making multicolour rainbow hologram

t first,a new method of making a rainbow hologram of a two─dimensionaI transmissive object is presented,that is,a special─designed holographic optical element─colour code─plate and a single beam is used to produce a rainbow hologram of the obzect.On the basis of this, by further designof the coIour code─plate,a set of colour code─plates corresponding to different main wavelengths were made to make the multicolour rainbow reappeared hologram of recorded object.The results of experi- ment show this method is simple and convenient to use,the flexibility of optical arrangement is good,it can effectively eliminate the effect of longitudinal chromatism,it is properly suitable to make a mother hologram when a molded hologram is made,and that it can lower the requirement of the stability of cir- cumstances.