| 摘要 |
PURPOSE: An LGP and a flat lighting apparatus are provided to uniformly project the light to the outside of the LGP by forming a scattering pattern inside the LGP and lowering the density of scattering pattern at a near region the light source while increasing the density of scattering pattern at far region from the light source. CONSTITUTION: In a LGP and a flat lighting apparatus, a scattering pattern(3) diffuses the light of the LGP(2). The scattering pattern is located inside the LGP and is not contacted to an air layer. The scattering pattern has the low density a part near to the light source(1) and ahs high density a part far from the light source. The scattering pattern has uniform emitted light distribution. |
