System and method for uniform light generation
First Claim
1. An illumination source comprising:
- a light source to produce colored light; and
a scrolling optics unit optically coupled to the light source, the scrolling optics unit configured to create lines of colored light from the colored light, and to scroll the lines of colored light along a direction orthogonal to a light path of the illumination source, wherein the scrolling optics unit comprises,a single light shaping diffuser to transform the colored light into the lines of colored light,an optical filter positioned in the light path after the light shaping diffuser, the optical filter configured to shape the lines of colored light, anda scrolling optics element positioned in the light path after the optical filter, the scrolling optics element configured to move the lines of colored light in the direction orthogonal to the light path.
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Accused Products
Abstract
A system and method for uniform light generation in projection display systems. An illumination source comprises a light source to produce colored light, and a scrolling optics unit optically coupled to the light source, the scrolling optics unit configured to create lines of colored light from the colored light, and to scroll the lines of colored light along a direction orthogonal to a light path of the illumination source. The scrolling optics unit comprises a single light shaping diffuser to transform the colored light into the lines of colored light, an optical filter positioned in the light path after the light shaping diffuser, and a scrolling optics element positioned in the light path after the optical filter. The single light shaping diffuser is capable of simultaneously transforming colored light into lines of colored light having substantially uniform intensity to provide uniform illumination.
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Citations
23 Claims
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1. An illumination source comprising:
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a light source to produce colored light; and a scrolling optics unit optically coupled to the light source, the scrolling optics unit configured to create lines of colored light from the colored light, and to scroll the lines of colored light along a direction orthogonal to a light path of the illumination source, wherein the scrolling optics unit comprises, a single light shaping diffuser to transform the colored light into the lines of colored light, an optical filter positioned in the light path after the light shaping diffuser, the optical filter configured to shape the lines of colored light, and a scrolling optics element positioned in the light path after the optical filter, the scrolling optics element configured to move the lines of colored light in the direction orthogonal to the light path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 21)
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12. A method comprising:
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generating spots of colored light; focusing the spots of colored light on a single diffuser; generating lines of colored light from the spots of colored light; filtering the lines of colored light; and scrolling the filtered lines of colored light. - View Dependent Claims (13, 14, 15, 22)
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16. A method of manufacturing a display system, the method comprising:
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installing a light source configured to generate coherent light, wherein the light source installing comprises installing a coherent light source to produce colored light, installing a light shaping diffuser in a light path of the coherent light source, the light shaping diffuser to substantially simultaneously transform the colored light into lines of colored light, installing a filter in the light path of the coherent light source, the filter to shape the lines of colored light, and installing a scrolling optics element in the light path of the coherent light source after the filter, the scrolling optics element to scroll the lines of colored light; installing a microdisplay in a light path of the display system after the light source; installing a controller configured to control the light source, the scrolling optics element, and the microdisplay; and installing a display plane in the light path of the display system after the microdisplay. - View Dependent Claims (17, 18, 19, 20, 23)
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Specification