Quantum photonic imagers and methods of fabrication thereof
First Claim
1. A projector comprising:
- an emissive multicolor digital image forming device in the form of a two dimensional array of multicolor laser light generating and emitting pixels;
the two dimensional array of multicolor laser light generating and emitting pixels being a multilayer vertical stack of laser light generating and emitting pixels, each layer of the vertical stack generating and emitting a single color of the two dimensional array of multicolor laser light generating and emitting pixels, the emission of each layer of each pixel being separately controllable, anda projection lens group coupled to the emissive aperture of the multicolor imager device to magnify the image size formed by the emissive multicolor digital image forming device.
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Abstract
Emissive quantum photonic imagers comprised of a spatial array of digitally addressable multicolor pixels. Each pixel is a vertical stack of multiple semiconductor laser diodes, each of which can generate laser light of a different color. Within each multicolor pixel, the light generated from the stack of diodes is emitted perpendicular to the plane of the imager device via a plurality of vertical waveguides that are coupled to the optical confinement regions of each of the multiple laser diodes comprising the imager device. Each of the laser diodes comprising a single pixel is individually addressable, enabling each pixel to simultaneously emit any combination of the colors associated with the laser diodes at any required on/off duty cycle for each color. Each individual multicolor pixel can simultaneously emit the required colors and brightness values by controlling the on/off duty cycles of their respective laser diodes.
116 Citations
28 Claims
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1. A projector comprising:
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an emissive multicolor digital image forming device in the form of a two dimensional array of multicolor laser light generating and emitting pixels;
the two dimensional array of multicolor laser light generating and emitting pixels being a multilayer vertical stack of laser light generating and emitting pixels, each layer of the vertical stack generating and emitting a single color of the two dimensional array of multicolor laser light generating and emitting pixels, the emission of each layer of each pixel being separately controllable, anda projection lens group coupled to the emissive aperture of the multicolor imager device to magnify the image size formed by the emissive multicolor digital image forming device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 23, 24, 25, 28)
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8. A projector comprising:
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an emissive multicolor digital image forming device in the form of a two dimensional array of multicolor laser generating and emitting pixels; a companion device electrically coupled to receive image source data and convert the image source data into the on-off duty cycle values of laser diodes comprising each of the pixels of the emissive multicolor image forming device, the companion device including; a color-space conversion block; a uniformity correction block, including a weighting factor look-up table; a pulse-width modulation conversion block; and a synchronization and control block; a projection lens group coupled to an emissive aperture of the multicolor imager device to magnify the image size formed by the emissive multicolor digital image forming device. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 26, 27)
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16. A projector comprising:
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an emissive digital image forming device in the form of a two dimensional light generating and emitting diode pixel array; the two dimensional light generating and emitting pixel array being vertically stacked on a companion device, the companion device being electrically coupled to receive image source data and convert the image source data into the on-off duty cycle values of each of the diodes comprising each of the pixels of the emissive image forming device, the emission of each layer of each pixel being separately controllable, and a projection lens group coupled to the emissive aperture of the emissive digital image forming device to magnify the image size formed by the emissive digital image forming device. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification