| 摘要 |
PROBLEM TO BE SOLVED: To provide a control method for the reproduced wavelength by film thickness shrinkage and manufacture new hologram. SOLUTION: An interference film generated by the interference of a laser beam or the light excellent in coherence property is recorded as fringes having different refraction factors to manufacture hologram. The laser beam for forming the hologram is exposed on the film of a photosensitive composition containing a radical polymerization monomer, a cation polymerization monomer, a light radical polimerization initiator, a light cation polimerization initiator, and an organic solvent. Ultraviolet rays are radiated to the whole film, then the film is heated at 100-180 deg.C for 1-120min to evaporate the volatile component of the organic solvent. The hologram can be manufactured when the reproduced wavelength is controlled to be made smaller than the recorded wavelength by film thickness shrinkage. |
