Patent ID: 8089693
Filing Date: 2012-01-03
Classification: G02B,Y10S

Abstract:
1. A color separation and polarization device, comprising: a lens module, further comprising a first frame having a polarization material configured thereat, and the first frame being configured with a first light-entrance surface and a first light-emitting surface in a manner that both the first light-entrance surface and the first light-emitting surface are fitted with a respective lens structure; and an optical element, further comprising a second frame configured with a second light-entrance surface and a second light-emitting surface in a manner that both the second light-entrance surface and the second light emitting surface are fitted with a respective triangle-shaped microstructure; wherein, when a white light beam enters the first frame through the first light-entrance surface, the white light beam is polarized by the polarization material, converged by the lens structure configured on the first light-emitting surface, and is projected out of the first frame from the first light-emitting surface while being guided to enter the optical element through the second light-entrance surface where it is split into a red beam, a green beam, and a blue beam by the triangle-shaped microstructures configured on the second light-entrance surface of the optical element, and the red beam, green beam, and blue beam of light are collimated by the triangle-shaped microstructures configured on the second light-emitting surface and then emitted from the second light-emitting surface; wherein the two triangle-shaped microstructures are formed in a periodic structure of period ranged between 0.5 μm to 5 μm.