| 摘要 |
PURPOSE:To obtain bleaching solution to be used in the method to obtain bleaching phase hologram from silver salt photosensitive material, by mixing bromate and oxidizing agent. CONSTITUTION:Bleaching solution is prepered by mixing a bromate such as potassium bromate, sodium bromate and barium bromate with an oxidizing agent such as dichromate, copper salt (copper sulfide, copper chloride, etc.), and persulfate (ammonium persulfate, potessium persulfate, etc.). Using this bleaching solution, a phase hologram excelling in photo resistance, high in refractive index, and superior in efficiency, yet free from print-out phenomenon, may be obtained. |
