Patent ID: 7846615

Claim:
A hologram recording material comprising: a molecule having intrinsic birefringence; a photoresponsive macromolecule represented by the following formula: wherein, in the formula, X is selected from the group consisting of —CF 3 , —F, —Cl, —Br, —I, —OCF 3 and —SCF 3 , the maximum absorption wavelength of an azobenzene group bonding to X is approximately 360 nm or less, n represents an integer of 1 or more, and a1 and a2 signify molar ratios satisfying a relation of a1+a2=1 when a1 is in a range of from more than 0 to 1, and a2 is in a range of from 0 to less than 1; and a photopolymerization initiator present in an amount of approximately 0.08% by weight or less relative to the hologram recording material, the photopolymerization initiator promotes a reaction of the reactive molecule having an intrinsic birefringence that is either, or both of, polymerization and crosslinking, wherein the molecule having intrinsic birefringence is a reactive liquid crystal molecule.