Optical projection system
First Claim
1. An optical projection system, comprising:
- a light source, for providing a first white light;
a beam splitter module, disposed in a light path of the first white light to separate the first white light into a plurality of second white lights;
a plurality of spatial light modulators, each disposed in a light path of each of the second white lights respectively, wherein each of the spatial light modulators comprises a color filter respectively to modulate the second white light incident therein into a plurality of color lights carrying a plurality of image signals;
an optical combiner module, disposed in light paths of the color lights to combine the color lights; and
a projection lens, disposed in a light path of the combined color lights after the optical combiner module to project an image of the combined color lights.
1 Assignment
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Accused Products
Abstract
An optical projection system comprising a light source, a beam splitter module, a plurality of spatial light modulators, an optical combiner module and a projection lens is provided. The light source is used for providing a first white light. The beam splitter module is disposed in the light path of the first white light to separate the first white light into a plurality of second white lights. The spatial light modulators are disposed in the light paths of the second white lights respectively. Each spatial light modulator comprises a color filter to modulate each second white light into a color light carrying with corresponding color image signal. The optical combiner module is disposed in the light paths of the color lights to combine the color lights. The projection lens is disposed in the light path of the combined color lights after the optical combiner module to project the combined color light to be an image.
6 Citations
8 Claims
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1. An optical projection system, comprising:
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a light source, for providing a first white light; a beam splitter module, disposed in a light path of the first white light to separate the first white light into a plurality of second white lights; a plurality of spatial light modulators, each disposed in a light path of each of the second white lights respectively, wherein each of the spatial light modulators comprises a color filter respectively to modulate the second white light incident therein into a plurality of color lights carrying a plurality of image signals; an optical combiner module, disposed in light paths of the color lights to combine the color lights; and a projection lens, disposed in a light path of the combined color lights after the optical combiner module to project an image of the combined color lights. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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- Resources
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Current AssigneeUnited Microelectronics Corporation
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Original AssigneeUnited Microelectronics Corporation
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InventorsChan, Chia-Tsung, Lin, Chia-Te, Kuan, Da-Shuang, Whitehead, Tony
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Primary Examiner(s)Dudek, James A.
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Application NumberUS10/886,844Publication NumberTime in Patent Office664 DaysField of Search349 7- 9, 353/20, 353/31, 353/34US Class Current349/8CPC Class CodesH04N 9/3105 for displaying all colours ...H04N 9/315 Modulator illumination syst...
