Spatial multiplexing scheme
First Claim
1. An optoelectronic apparatus, comprising:
- an enclosure comprising mutually-opposing first and second faces;
an array of emitters contained in the enclosure and configured to emit beams of optical radiation;
projection optics contained in the enclosure and having an entrance face and an exit face and configured to receive the beams of optical radiation through the entrance face and to project the beams through the exit face;
a polarization-based spatial multiplexer, which is contained in the enclosure and positioned to intercept and direct the projected beams such that the optical radiation having a first polarization is transmitted through the first face, while the optical radiation having a second polarization, orthogonal to the first polarization, is emitted through the second face; and
a controller, which is coupled to control a polarization of the optical radiation and thereby control a direction in which the optical radiation is emitted from the enclosure.
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Accused Products
Abstract
An optoelectronic apparatus includes an enclosure having mutually-opposing first and second faces. An array of emitters contained in the enclosure is configured to emit beams of optical radiation. Projection optics contained in the enclosure have an entrance face and an exit face and are configured to receive the beams of optical radiation through the entrance face and to project the beams through the exit face. A polarization-based spatial multiplexer is contained in the enclosure and positioned to intercept and direct the projected beams such that the optical radiation having a first polarization is transmitted through the first face, while the optical radiation having a second polarization, orthogonal to the first polarization, is emitted through the second face. A controller is coupled to control a polarization of the optical radiation and thereby control a direction in which the optical radiation is emitted from the enclosure.
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Citations
20 Claims
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1. An optoelectronic apparatus, comprising:
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an enclosure comprising mutually-opposing first and second faces; an array of emitters contained in the enclosure and configured to emit beams of optical radiation; projection optics contained in the enclosure and having an entrance face and an exit face and configured to receive the beams of optical radiation through the entrance face and to project the beams through the exit face; a polarization-based spatial multiplexer, which is contained in the enclosure and positioned to intercept and direct the projected beams such that the optical radiation having a first polarization is transmitted through the first face, while the optical radiation having a second polarization, orthogonal to the first polarization, is emitted through the second face; and a controller, which is coupled to control a polarization of the optical radiation and thereby control a direction in which the optical radiation is emitted from the enclosure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optoelectronic apparatus, comprising:
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an array of pairs of first and second emitters, wherein the first emitters are configured to emit respective first beams of optical radiation of a first polarization, and the second emitters are configured to emit respective second beams of optical radiation of a second polarization orthogonal to the first polarization; projection optics having an entrance face and an exit face and configured to receive the first and second beams of the optical radiation through the entrance face and to project the beams through the exit face; and a polarizing beamsplitter, which is positioned to intercept the projected beams and configured to transmit the optical radiation of the first polarization and to reflect the optical radiation of the second polarization. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A method for projecting optical radiation, comprising:
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providing an enclosure comprising mutually-opposing first and second faces, containing an array of emitters configured to emit beams of optical radiation and projection optics having an entrance face and an exit face and configured to receive the beams of optical radiation through the entrance face and to project the beams through the exit face; positioning a polarization-based spatial multiplexer to intercept and direct the projected beams such that the optical radiation having a first polarization is transmitted through the first face, while the optical radiation having a second polarization, orthogonal to the first polarization, is emitted through the second face; and controlling a polarization of the optical radiation, thereby controlling the direction in which the optical radiation is emitted from the enclosure. - View Dependent Claims (18, 19, 20)
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Specification