The surface condition light equipment which uses the optical reflected sheet and the optical reflected sheet

摘要

PPROBLEM TO BE SOLVED: To provide a light reflection sheet excellent in a heat radiation effect and moreover improved in utilization efficiency of the light. PSOLUTION: The light reflection sheet is constituted by bonding a carbon graphite sheet 11 through a reflection film 15 to an opposite side surface to a surface of a thermoplastic polyester foamed sheet on and from which light is made incident and made to exit. The thermoplastic polyester foamed sheet having fine foams with an average diameter of 100 μm or less, has a thickness of 200 μm or more and a specific gravity of 0.7 or less. PCOPYRIGHT: (C)2004,JPO