Abstract: The effect of size and numbers of slit to reconstruction image of rainbow hologram is studied in this paper. By using different size of slit, tow slits and three slits, the exprimental holography is done. Light energy and colour blurred of reconst ruction image are analysed. The result that reconstruction image by using two slits and three slits photograph are bighter is obtained.Transmission and reflection reconstruction images in a rainbow photoram are oberved.

Key words: slit, rainbow hologram, reconstructed photo