Title: Simple non-poisonous silver halide bleaching method for hologram
Application Number: 200410084249 Application Date: 2004.11.17
Publication Number: 1609730 Publication Date: 2005.04.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G03H1/00,G03C5/26
Applicant(s) Name: Shanghai Inst. of Optics Address: 201800
Inventor(s) Name: Gao Hongyi, Chen Jianwen
Attorney & Agent: zhang zechun
Abstract:
     The simple non-toxic silver halide hologram bleaching process includes the following four steps: developing in developing solution, fixing and air drying the photographed silver halide hologram; bleaching the silver halide hologram in hydrogen peroxide solution until all the developed black figure becomes transparent; flushing in clear water for 5 min before air drying; reconfiguring the bleached hologram, or phase type hologram, with He-Ne laser to obtain reconfiguration with high diffraction efficiency. The process of the present invention is simple, effective in raising the diffraction efficiency of hologram, and favorable to health of the worker.
Time: 6