LUMINAIRE, LIGHT SOURCE AND ULTRAVIOLET RAY ABSORBER FOR LAMP COVER

摘要

PROBLEM TO BE SOLVED: To provide a luminaire provided with a plastic lamp cover having a light fastness and durability against ultraviolet rays radiated from a light source such as a fluorescent light or the like at an adjacent position. SOLUTION: A lamp cover 2 covering a fluorescent tube 1 is made of plastic and ultraviolet ray absorber 3 giving the plastic light fastness is applied on an inner surface of the plastic lamp cover 2. The ultraviolet ray absorber 3 is a polymer ultraviolet ray absorber containing at least one kind of ultraviolet ray absorbing monomer (A) selected from a benzophenon type ultraviolet ray absorbing monomer and a benzotriazole type ultraviolet absorbing monomer as a monomer component composing a polymer.