Pseudo light pipe for coupling of light for dual paraboloid reflector (dpr) system
OwnerKenneth Liinventor
Life of this patent
Estimating the term…
Abstract
A pseudo light pipe comprises an input end, an output end and a light transmission medium. The input end collects rays of light from a light source. The output end outputs and collimates the rays of the light collected at the input end. The output end has a convex curvature. The light transmission medium interconnects the input and output end, and transmits the rays of the light from the input end to the output end. The convex curvature of the output end is selected to output parallel rays of light. A projection system incorporating the pseudo light pipe and a dual paraboloid reflector (DPR) system.
Claims27
A pseudo light pipe, comprising:
- an input end for collecting rays of light from a light source;
- an output end for outputting and collimating said rays of the light collected at said input end, said output end having a convex curvature;
- and
- a light transmission medium interconnecting said input end and said output end for transmitting said rays of the light from said input end to said output end;
- and
- wherein said convex curvature of said output end is selected to output parallel rays of light.
A projection system, comprising:
- a projection engine;
- a light source comprising a lamp, a dual paraboloid reflector (DPR) and a retro-reflector for collecting and re-directing stray rays of light to the DPR;
- and
- a pseudo light pipe comprising:
- an input end for collecting rays of light from the light source;
- an output end for outputting and collimating said rays of the light collected at said first end, said output end having a convex curvature;
- a light transmission medium interconnecting said first end and said second end for transmitting said rays of the light from said first end to said second end;
- and
- wherein said convex curvature of said output end is selected to output parallel rays of light to the projection engine.
Dependencies are inferred from the claim text.