The experiments have shown that dichromated gelatin(DCG)hologfam can be redeveloped,and the quantity of hologram recording with high exposure can be improved by proper redevelopment.

• 实验表明，用重铬酸盐明胶(DCG)记录的体全息图可水洗擦除后再显影。对高曝光量及多次曝光记录的全息图，采用适当的再显影工序，可改善全息图的图像质量。