HOLOGRAM DECREASED WITH DENT DEFECTS

摘要

PURPOSE: To provide a hologram with which the generation of dent defects is lessened in spite of intrusion of foreign matter and the defects are not visually admitted in reconstructed images. ;CONSTITUTION: The side of glass with a nonreflection coating or ND glass 13 or original plate protective glass 6 in contact with a photosensitive material film 8 or the side of the photosensitive material film 8 in contact with the glass 13, 6 is provided with cushion layers 15, 16, by which the foreign matter, if intruded between the glass 13, 6 and the film 8, is enveloped into the cushions. The floating of the photosensitive material film 8 by flow of optical contact liquids 9, 7 and compression of the foreign matter is thereby prevented.;COPYRIGHT: (C)1995,JPO