Patent ID: 7598025

Claim:
A method for producing a hologram comprising the steps of exposing, developing and bleaching a hologram silver halide photographic material having at least one silver halide emulsion layer formed on a support, wherein the hologram silver halide photographic material contains silver halide particles having an average particle diameter of 0.03 μm to 0.05 μm; a film thickness of the silver halide emulsion layer is 4 μm to 9 μm; a silver/gelatin ratio of the silver halide emulsion layer is 0.3 to 0.6; and the silver halide emulsion layer contains at least one kind of compounds represented by the following general formula, and where the photographic material is developed by contacting with ascorbic acid, sodium carbonate and a developer containing phenidone; wherein Y 1 represents a —N(R)— group, an oxygen atom, a sulfur atom, or a selenium atom; R represents an aliphatic group having carbon atoms of 10 or less; R 1 represents an aliphatic group, aryl group or heterocyclic group which contains at least one water-soluble group as a substituted group; V 1 and V 2 respectively represent a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, or a substituted or non-substituted group forming a condensed ring with an azole ring by the bonding of V 1 and V 2 ; n represents 1 or 2 and m represents 0 or 1; L 1 , L 2 , L 3 and L 4 respectively represent a methine group; at least one of L 1 and L 2 has a substituted group having 3 or more carbon atoms and having an SP less than 539 when n is 1 or 2 and m is 0; and at least one of L 1 , L 2 , L 3 and L 4 has a substituted group having 3 or more carbon atoms and SP is less than 539 when n is 1 or 2 and m is 1; herein, SP is a value represented by SP=3.563L−2.661B+535.4; L represents a Sterimol parameter (Å); and B represents a value (Å) of the smaller one of the sum B 1 +B 4 and sum B 2 +B 3 of the Sterimol parameter; Q 1 and Q 2 respectively represent a nonmetallic atom group required for forming an acid ring; M 1 represents an ion required for cancelling all the electric charges of a molecule, and n 1 represents the number required for neutralizing the electric charges of the molecule; n 1 is 3 or more.