SEE-THROUGH COMPUTER DISPLAY SYSTEMS
First Claim
Patent Images
1. A compact optics module for a head mounted display including a DLP image source comprising:
- a. a polarized light source providing illumination light;
b. a flat reflective polarizer to reflect the illumination light toward the DLP image source and transmit image light, wherein the illumination light is provided at an angle to the DLP;
c. a quarter wave retarder to change the polarization state of the illumination light as it is reflected by the DLP image source thereby providing image light;
d. at least one light trap to absorb a portion of off-state image light;
e. a lens element to provide a viewable field of view of on-state image light in image displayed by the DLP image source; and
f. a combiner to reflect the on-state image light toward a user'"'"'s eye and provide a see-through view of a surrounding environment.
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Abstract
Aspects of the present invention relate to providing see-through computer display optics.
173 Citations
11 Claims
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1. A compact optics module for a head mounted display including a DLP image source comprising:
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a. a polarized light source providing illumination light; b. a flat reflective polarizer to reflect the illumination light toward the DLP image source and transmit image light, wherein the illumination light is provided at an angle to the DLP; c. a quarter wave retarder to change the polarization state of the illumination light as it is reflected by the DLP image source thereby providing image light; d. at least one light trap to absorb a portion of off-state image light; e. a lens element to provide a viewable field of view of on-state image light in image displayed by the DLP image source; and f. a combiner to reflect the on-state image light toward a user'"'"'s eye and provide a see-through view of a surrounding environment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification