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US 8,127,995 B2Granted
Filter-free projector
OwnerKuo-Ching Chianginventor
Life of this patent
Estimating the term…
Abstract
A filter-free projector includes a light source unit to generate light beam with different color and a color control module couple to the light source unit for switching the light source unit to emit one color light at a time. A digital mirror device panel having a plurality of mirror elements is provided so as to reflect light fed from the light source unit. Projection lens is positioned in the reflected light path from the digital mirror device panel to project image.
Claims13
A filter-free projector comprising:
- a light source unit to generate light beam with different color;
- a sequence light color control module coupled to said light source unit for switching said light source unit to emit different color light with order and sequence;
- a digital mirror device panel having a plurality of mirror elements each being controlled so as to reflect light fed from said light source unit, and said digital mirror device panel being coupled to an image signal;
- wherein a switching frequency of said sequence light color control module is higher than a frequency of said image signal;
- and
- projection lens positioned in the reflected light path from said digital mirror device panel to project image.
3 more elements
Dependencies are inferred from the claim text.