一、引言近年来,全息术的一个重要分支——全息光学元件(HOE)技术发展很快。国外已经把全息透镜应用于全息扫描器,全息头盔显示器等等。许多器件已经商品化。由于全息透镜是衍射元件,所以其色差是很严重的。为了减小色差,需用窄谱光源照明,限制了全息透镜的应用,国外许多学者都强调这一点。全息透镜是否能用于宽谱光源场合呢?70年代以来,国外一些学者在这方面进行了探讨,其中最吸引人的是J.N.Latta的工作。他运 I. INTRODUCTION In recent years, holographic optics (HOE), an important branch of holography, has developed rapidly. Foreign holographic lens has been used in holographic scanners, holographic helmet displays and so on. Many devices have been commercialized. Since holographic lenses are diffractive elements, the color difference is very serious. In order to reduce the color difference, the need to use narrow-spectrum light source illumination, limiting the application of holographic lens, many foreign scholars have emphasized this point. Holographic lens can be used for a wide spectrum of light source it? Since the 1970s, some foreign scholars have discussed in this area, the most attractive is the work of J.N.Latta. He shipped