Patent ID: 8480282

Claim:
A reflective plate comprising: a high heat conductivity material; a reflective material having a shielding layer on a bottom of the reflective material for shielding and improving stiffness; an adhesive having a small refractive index between the high heat conductivity material and the reflective material, wherein the adhesive bonds the high heat conductivity material and the reflective material; wherein the reflective material is at least one of Ag, Al 2 O 3 , TiO 2 , Al, Polyethylene Terephthalate, and optical fiber, wherein the reflective material is coated with a scattering material including a plurality of diffusion beads applied thereon, wherein the high heat conductivity material is at least one of graphite and carbon nano tube (CNT) in a form of sheet, plate or powder, and wherein the adhesive is formed of TPFE that has refractive index of 1.31 when wavelength is 589.3 nm.