SUPPLEMENTING METHOD FOR HOLOGRAM PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide a supplementing method which writes visible information once to a hologram product, does not generate dust and does not deteriorate the flatness of the surface. SOLUTION: This method consists in writing the visible information to a hologram recording layer 11 of the hologram product 1 which has the hologram recording layer 11 consisting of a photopolymer, is recorded with hologram interference patterns on the hologram recording layer 11 and is subjected to development stabilization of the patterns by irradiating the hologram recording layer 11 described above in patterns with a laser beam 22 of an exposure sensitivity wavelength region of the photopolymer at light quantity density of >=100 times the hologram interference pattern exposure energy of the photopolymer.