Patent ID: 7546009
Filing Date: 2009-06-09
Classification: G02B,G06F

Abstract:
1. An optical element comprising a planar lens and an optical waveguide, said planar lens comprising a slab waveguide formed from a first medium of first refractive index, with said optical waveguide connected to a first end of said slab waveguide and a curved surface forming a second end of said slab waveguide, said slab waveguide containing a diverging lens formed from a second medium of second refractive index, different from said first refractive index, wherein said curved surface forms a converging lens such that as light passes from said optical waveguide through said slab waveguide its divergence is enhanced by said diverging lens before said light is converged by said curved surface so as to form a substantially collimated beam upon exiting said slab waveguide.