Cc. Jiang et al., 2-STEP ASTIGMATIC RAINBOW HOLOGRAMS PROJECTING REAL IMAGES IN FRONT OF THE HOLOGRAM, Optics and Laser Technology, 25(3), 1993, pp. 171-173
A new kind of rainbow holography, called real-image astigmatic rainbow
holography, is presented. Differing from conventional astigmatic rain
bow holography, which has images behind the hologram, this new hologra
phy can project a real image distinctly in front of the hologram.