| http://www.w3.org/ns/prov#value | - The difference in refractive index between the recording film 2, the transparent member 3 and the index matching liquid 4 is preferably not larger than 0.2, more preferably not larger than 0.1, in the temperature range of from 15??? C. to 25??? C. Specific examples of the material of the transparent member 3 are as follows: When the principal component of the recording film 2 is a polyvinyl carbaz
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