Headlamp with digital micromirror device and static reflector
First Claim
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1. A headlamp, comprising:
- a digital micromirror device (DMD) reflector comprising;
a DMD; and
a static reflector disposed on a plurality of sides of the DMD;
a light source disposed to illuminate the DMD reflector;
projection optics configured to project light reflected by the DMD and light reflected by the static reflector via a same lens system, the static reflector;
being disposed to reflect light from the light source to the projection optics; and
comprising at least one of a flat mirror, a curved mirror or a Fresnel element; and
control circuitry configured to;
monitor a temperature of the DMD; and
move a portion of the static reflector from a first position to a second position responsive to the temperature of the DMD being less than a limit.
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Abstract
A headlamp includes a digital micromirror device (DMD) reflector, a light source, and projection optics. The DMD reflector includes a DMD and a static reflector disposed on a plurality of sides of the DMD. The light source is disposed to illuminate the DMD reflector. The projection optics are configured to project light reflected by the DMD and light reflected by the static reflector via a same lens system.
14 Citations
21 Claims
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1. A headlamp, comprising:
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a digital micromirror device (DMD) reflector comprising;
a DMD; and
a static reflector disposed on a plurality of sides of the DMD;a light source disposed to illuminate the DMD reflector; projection optics configured to project light reflected by the DMD and light reflected by the static reflector via a same lens system, the static reflector;
being disposed to reflect light from the light source to the projection optics; and
comprising at least one of a flat mirror, a curved mirror or a Fresnel element; andcontrol circuitry configured to;
monitor a temperature of the DMD; and
move a portion of the static reflector from a first position to a second position responsive to the temperature of the DMD being less than a limit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A headlamp, comprising:
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a reflector module comprising;
a spatial light modulator; and
a static reflector disposed on a plurality of sides of the spatial light modulator;a light source disposed to illuminate the reflector module; projection optics configured to project light from the spatial light modulator and light reflected by the static reflector via a same lens system, the static reflector;
being disposed to reflect light from the light source to the projection optics; and
comprising at least one of a flat mirror, a curved mirror or a Fresnel element; andcontrol circuitry configured to;
monitor a temperature of the spatial light modulator; and
move a portion of the static reflector from a first position to a second position responsive to the temperature of the spatial light modulator being less than a limit. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification