Three dimensional image projector

Abstract

A system is provided for projecting a three-dimensional image. The system includes a first light source, the first light source emitting light in a first direction and a second light source emitting light in a second direction. A beam splitter device is disposed adjacent each light source and an imaging device is disposed adjacent the beam splitter device. Light from the first light source and the second light source travel a common optical path to a projector lens assembly.

1 - 13 . (canceled) 
     
     
         14 . A system comprising:
 a first light source emitting light having a first polarization;   a second light source emitting light having a second polarization;   a first beam splitter device (PBS) adjacent the first light source;   a second PBS adjacent the second light source;   a first imaging device adjacent the first PBS;   a second imaging device adjacent the second PBS;   a third PBS disposed between the first PBS and the second PBS;   a projection lens assembly located adjacent the third PBS; and,   a mirror disposed on the side of the third PBS opposite the projection lens assembly.   
     
     
         15 . The system of  claim 14  wherein the first polarization is orthogonal to the second polarization. 
     
     
         16 . The system of  claim 14  wherein the first light source emits a first light in a first direction and the second light source emits a second light in a second direction, the second direction being opposite the first direction. 
     
     
         17 . The system of  claim 14  wherein the first imaging device and the second imaging device are LCoS devices. 
     
     
         18 . The system of  claim 14  wherein the light emitted by the first light source and the light emitted by the second light source are transmitted along the same optical path from the third PBS to the projection lens assembly. 
     
     
         19 . The system of  claim 14  further comprising:
 a first fly's eye lens arranged between the first light source and the first PBS; and, 
 a first pre-polarizer lens arranged between the first fly's eye lens and the first PBS. 
 
     
     
         20 . The system of  claim 19  further comprising:
 a second fly's eye lens arranged between the second light source and the second PBS; and, 
 a second pre-polarizer lens arranged between the second fly's eye lens and the second PBS. 
 
     
     
         21 . The system of  claim 19  wherein the first light source comprises:
 a plurality of first LED devices; 
 a plurality of first light collection optics, each of the plurality of first light collection optics associated with one of the plurality of first LED devices; and, 
 a first dichroic color combiner disposed between the plurality of first light collection optics, the first dichroic color combiner arranged to direct light from the plurality of first LED devices into the first fly's eye lens. 
 
     
     
         22 . The system of  claim 20  wherein the second light source comprises:
 a plurality of second LED devices; 
 a plurality of second light collection optics, each of the plurality of second light collection optics associated with one of the plurality of second LED devices; and, 
 a second dichroic color combiner disposed between the plurality of second light collection optics, the second dichroic color combiner arranged to direct light from the plurality of second LED devices into the second fly's eye lens. 
 
     
     
         23 . The system of  claim 14  further comprising a feedback circuit coupled to the first light source, the second light source, the first PBS, the second PBS, the first imaging device, and the second imaging device.