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US 7,443,567 B2Granted
Image enhancement of a microdisplay through acoustooptics
AssigneeTexas Instruments Incorporated
InventorWalter M. Duncan
Life of this patent
Estimating the term…
Abstract
A method of processing light includes generating a beam of light and periodically diffracting the beam of light by an acoustooptic cell to produce diffracted light having at least one direction change from the generated light. The method further includes spatially integrating the diffracted light and providing the spatially integrated light to a spatial light modulator.
Claims24
A light processing system comprising:
- an acoustooptic cell capable of responding to a received waveform by alternating between transmitting diffracted light and non-diffracted light;
- a controller capable of generating the waveform;
- a spatial light modulator comprising a plurality of pixel elements, each pixel element capable of selectively communicating the diffracted light and the non-diffracted light;
- and
- wherein the acoustooptic cell and spatial light modulator are communicatively coupled such that a visual display is produced from the diffracted, selectively communicated light and from the non-diffracted, selectively communicated light.
2 more elements
A method of processing light comprising:
- generating a beam of light having a first frequency range;
- periodically diffracting the beam of light by an acoustooptic cell to produce diffracted light having the first frequency range and at least one directional change from the generated beam of light;
- periodically transmitting the beam of light by the acoustooptic cell to produce non-diffracted light having the first frequency range;
- spatially integrating the diffracted light and the non-diffracted light from the acoustooptic cell;
- and
- providing the spatially-integrated light to a spatial light modulator.
3 more elements
A method of processing light comprising:
- generating a beam of light from a light source:
- periodically diffracting the beam of light by an acoustooptic cell to produce diffracted light having at least one directional change from the light source;
- periodically transmitting the beam of light by the acoustooptic cell to produce non-diffracted light having no directional change from the light source;
- receiving the periodically diffracted light and the periodically transmitted light at a spatial light modulator operable to selectively reflect light in response to receiving an image signal;
- selectively reflecting, by the spatial light modulator, the non-diffracted light and the diffracted light;
- and
- displaying a first display of the selectively reflected, non-diffracted light in alternation with a second display of the selectively reflected, diffracted light.
4 more elements
Dependencies are inferred from the claim text.