全息照像术，一种再现物体三维空间形象的方法，在底片或版片上记录由分裂的激光光束干扰下的图案，然后再用普通光或感激光显示出该图案

• a method of producing a three-dimensional image of an object by recording on a photographic plate or film the pattern of interference formed by a split laser beam and then illuminating the pattern either with a laser or with ordinary light