本文提出了一种新的两步彩虹全息记录方法。这种方法不需要在主全息图前放置狭缝;所需要的限制狭缝通过适当改变主全息图再现光的方向来合成。文中给出了详细的理论分析和有关实验结果。

A new two-step rainbow holographic process is proposed, shich does not need to put a slit in front of the primary hologram. The required slit is synthesized by properly charging the inoidert angle of the reconstruction beam of the primary hologram. Both theoretical analysis and experimental results are presented.