Patent ID: 8089425
Filing Date: 2012-01-03
Classification: G02B,H04N

Abstract:
1. A display system, comprising: a plurality of lasers forming a laser array to produce a plurality of laser beams, respectively; a scanning module placed in an optical path of the laser beams to scan the laser beams in two orthogonal directions; an afocal optical relay module placed between the lasers and the scanning module having a plurality of lenses to reduce a spacing between two adjacent laser beams of the laser array and to overlap the laser beams at the scanning module, wherein the afocal optical relay module comprises a plurality of first lenses, a second lens; and a third lens, wherein: a screen; a scan lens positioned to receive the laser beams from the scanning module and to project the laser beams onto the screen by imaging the lasers onto the screen; and a Fresnel lens placed in front of the screen to direct light from the scan lens into the screen at a normal incidence.