一种新的消色像全息术

A new achromatic image holography

本文从全息再现像的物像关系出发,对准像面情况下,像点随波长及参考光源扩展的变化进行了研究.阐明了利用散射线光源作参考光使全可见光范围内的像叠加在一起,产生消色像全息图的基本思想,并引入了消色像域的概念.考虑到点基元全息图尺寸及人眼瞳孔对成像光束的限制,白光再现时,可以获得清晰、明亮、具有一定景深和相当视场范围的消色再现像.

Based on the relationship between object and image in the holography, variations of image position with both expandings of wavelengbh and reference source are discussed in detail. The idea presented in this papar is that images of whole visible lighb can be overlapped to generate an achromatic image by making use of the one-dimentional diffused reference beam. The achromatic image rango is defined. Having considered the restriction of the elementary hologram and pupil of the eye to imaging beams, the high-quality achromatic image can be observed.