提出了一种用单波长激光制作真彩色彩虹全息图的新方法。该方法的要点在于记录彩虹全息图Ｈ２时，使用了合成狭缝技术。因而大大提高了光能利用率，并使再现像的彩色还原性易于控制。给出了理论分析与实验结果 A new method of making a true color rainbow hologram with a single wavelength laser is proposed. The key point of this method is that the synthetic slit technique is used when recording the rainbow hologram H2. As a result, the utilization of light energy is greatly increased and the color reproducibility of the reproduced image is easily controlled. The theoretical analysis and experimental results are given