Multiple channel illumination system
First Claim
1. An illumination unit for illuminating a target area, comprising:
- a plurality of light generating elements;
a plurality of light collection units disposed to collect light from respective light generating elements; and
a plurality of imaging lens units disposed to relay images of respective light collection units to proximate the target area, light from different light generating elements overlapping at the target area, wherein the light generating elements are arranged on a planar surface, wherein the illumination axis is positioned centrally with respect to the target area, and wherein the imaging lens units positioned at an increased lateral distance from the illumination axis have an increased optical axis offset with respect to the light received from the respective light collecting optical element.
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Accused Products
Abstract
An illumination system, used for illuminating a target area, includes a plurality of light generating elements and a plurality of light collection units disposed to collect light from respective light generating elements. Imaging lens units are disposed to relay images of respective light collection units to the target area, light from different light generating elements overlapping at the target area. In some embodiments, the illumination system also includes color combining elements to combine light from differently colored light generating elements. The illumination system may be used in a projection system, with the light from the illumination system incident on an image-forming device placed at the target area.
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Citations
13 Claims
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1. An illumination unit for illuminating a target area, comprising:
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a plurality of light generating elements; a plurality of light collection units disposed to collect light from respective light generating elements; and a plurality of imaging lens units disposed to relay images of respective light collection units to proximate the target area, light from different light generating elements overlapping at the target area, wherein the light generating elements are arranged on a planar surface, wherein the illumination axis is positioned centrally with respect to the target area, and wherein the imaging lens units positioned at an increased lateral distance from the illumination axis have an increased optical axis offset with respect to the light received from the respective light collecting optical element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification