Patent ID: 8049951
Filing Date: 2011-11-01
Classification: G02B

Abstract:
1. A display device comprising: a reflective spatial light modulator; a first light guide aligned over said modulator, said first light guide comprising a top surface disposed distal to said modulator and a bottom surface disposed proximate to said modulator, said first light guide further comprising a first end surface and a second end surface; a second light guide disposed between said modulator and said first light guide, said second light guide comprising a top surface disposed distal to said modulator and a bottom surface disposed proximate to said modulator, said second light guide further comprising a first end surface and a second end surface; a light source in optical communication with said first light guide and said second light guide, said light source configured to provide light through the first end surface of said first light guide and through the first end surface of said second light guide; and a turning mirror disposed to receive light emitted from said second light guide second end surface and direct said light to the second end surface of said first light guide, said first light guide further comprising turning features configured to direct light that enters said first light guide first end surface and light that enters said first light guide second end surface through the bottom surface of said first light guide to said modulator.