| http://www.w3.org/ns/prov#value | - The suitable adhesive layer may contain transparent particles, etc., as described above so as to be an adhesive layer exhibiting a diffusing function. [0091] The optical devices or parts, especially visual side optical devices or parts, maybe formed to have ultraviolet-ray absorbing power by a method of treatment with an ultraviolet-ray absorbent such as a salicylic ester compound, a benzophenone
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