Device and method for wavelength filtering
AssigneeQUALCOMM MEMS Technologies, Inc.
InventorsBrian Gally, William Cummings
Life of this patent
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Abstract
Embodiments include devices and methods for wavelength filtering. For example, one embodiment includes a display comprising a plurality of the display elements each comprising a movable reflector, a first partial reflector, and a second partial reflector. The first partial reflector is positioned at a first distance from the movable reflector and forms a first optical resonant cavity therebetween. The second partial reflector is positioned at a second distance from said first partial reflector and forming a second optical resonant cavity therebetween. In various embodiments, the movable reflector is movable with respect to the first partial reflector to alter the first optical cavity. Other embodiments include a method of making devices.
Claims39
A device for modulating light, the device comprising:
- a movable reflector;
- a first partial reflector positioned at a first distance from said movable reflector;
- and
- a second partial reflector positioned at a second fixed distance from said first partial reflector,
- wherein said movable reflector is movable with respect to said first partial reflector to alter said first distance.
A display comprising a plurality of display elements, each of the display elements comprising:
- means for reflecting light, said reflecting means being movable;
- first means for partially reflecting light, wherein said reflecting means and said first partially reflecting means are configured to interferometrically modulate light;
- and
- second means for partially reflecting light, wherein said first partially reflecting means and said second partially reflecting means are configured to interferometrically modulator light.
A device for modulating light, the device comprising:
- a movable reflector;
- a first partial reflector positioned at a first distance from said movable reflector, the movable reflector being movable with respect to said partial reflector to alter said first distance;
- at least one layer of dielectric material between said first partial reflector and said movable reflector;
- a second partial reflector positioned at a second fixed distance from said first partial reflector;
- and
- an electrode positioned between said first and second partial reflectors and configured to alter the position of said movable mirror.
A method of making a device for modulating light, the method comprising:
- forming a movable reflector;
- forming a first partial reflector positioned at a first distance from said movable reflector;
- and
- forming a second partial reflector positioned at a second fixed distance from said first partial reflector,
- wherein said movable reflector is movable with respect to said first partial reflector to alter said first distance.
Dependencies are inferred from the claim text.