Reflective spatial light modulator
First Claim
Patent Images
1. A micro mirror comprising:
- a mirror plate;
a spacer support frame;
a hinge connected to the spacer support frame and the mirror plate for allowing the mirror plate to rotate relative to the spacer support frame about an axis defined by the hinge; and
wherein each of the mirror plate, the spacer support frame, and the hinge are fabricated from a single continuous piece of material.
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Abstract
A micro-mirror array that is useful, for example, in a reflective spatial light modulator. In one embodiment, the micro mirror array includes spacer support walls, a vertical torsion hinge, and a mirror plate, all being fabricated from a single wafer. The micro-mirror array has a large fill ratio.
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Citations
20 Claims
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1. A micro mirror comprising:
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a mirror plate;
a spacer support frame;
a hinge connected to the spacer support frame and the mirror plate for allowing the mirror plate to rotate relative to the spacer support frame about an axis defined by the hinge; and
wherein each of the mirror plate, the spacer support frame, and the hinge are fabricated from a single continuous piece of material. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An array of a plurality of micro mirrors, comprising:
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a spacer support frame with walls defining a plurality of cavities, each cavity corresponding to a micro mirror;
a plurality of mirror plates;
a plurality of hinges, each hinge connected to at least one wall of the spacer support frame and connected to a mirror plate of the plurality of mirror plates for allowing that mirror plate to rotate relative to the spacer support frame about an axis defined by the hinge; and
wherein the spacer support frame, the plurality of mirror plates, and the plurality of hinges are fabricated from a single continuous piece of material. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. An array of a plurality of micro-mirrors, comprising:
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for each micro mirror in the array, at least one mirror plate with an upper surface;
for each micro mirror in the array, at least one hinge connected to the at least one mirror plate of that micro mirror for allowing that mirror plate to rotate;
a support frame with a plurality of support walls, each hinge connected to at least one support wall, for supporting the hinge and the mirror plate and separating each mirror plate from a second substrate connected to the support frame; and
wherein the mirror plates and the hinges are fabricated from a single continuous piece of material. - View Dependent Claims (18, 19, 20)
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Specification