Patent ID: 8861081
Filing Date: 2014-10-14
Classification: G02B,G02F,H04N

Abstract:
1. A light-guide, compact imaging optical system, comprising: an optical device, composed of a light-waves transmitting material, for collimating light waves, the device having at least one light-waves entrance surface, at least one light-waves exit surface and a plurality of external surfaces; at least one retardation plate carried by the optical device on at least a portion of one of the plurality of external surfaces; at least two light-waves polarizing beamsplitters, each one disposed at an angle to at least one of the light-waves entrance or exit surfaces; at least one light-waves collimating component covering at least a portion of the at least one retardation plate; a light-transmitting substrate having at least two major surfaces parallel to each other, edges and a light-waves input aperture; an optical element for coupling light waves from the optical device into the substrate by internal reflection, and at least one partially reflecting surface located in the substrate, the partially reflecting surface is non-parallel to the major surfaces of the substrate, wherein the input aperture of the light-transmitting substrate is positioned adjacent to the exit surface of the optical device.