Multi-chip semiconductor LED assembly
First Claim
1. A light emitting device, comprising one or more light emitting diodes, positioned on a shared submount;
- and circuitry, on said shared submount, wherein said one or more light emitting diodes are coupled to said circuitry.
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Accused Products
Abstract
A light emitting device includes several LEDs, mounted on a shared submount, and coupled to circuitry formed on the submount. The LEDs can be of the III-Nitride type. The architecture of the LEDs can be either inverted, or non-inverted. Inverted LEDs offer improved light generation. The LEDs may emit light of the same wavelength or different wavelengths. The circuitry can couple the LEDs in a combination of series and parallel, and can be switchable between various configurations. Other circuitry can include photosensitive devices for feedback and control of the intensity of the emitted light, or an oscillator, strobing the LEDs.
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Citations
34 Claims
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1. A light emitting device, comprising
one or more light emitting diodes, positioned on a shared submount; - and
circuitry, on said shared submount, wherein said one or more light emitting diodes are coupled to said circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of generating light with controlled intensity, comprising
generating at least one light beam by one or more light emitting diodes, positioned on a shared submount; -
detecting a portion of said at least one light beam by one or more light sensitive devices formed on said shared submount; and
controlling said one or more light emitting diodes by a control circuit on said shared submount, to control the intensity of said generated at least one light beam.
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31. A method of generating light with controlled intensity, comprising
generating a plurality of light beams by a plurality of light emitting diodes, positioned on a shared submount; -
detecting portions of said plurality of light beams by a plurality of light sensitive devices, wherein at least one of said plurality of light sensitive devices is formed on said shared submount underneath one of said plurality of light emitting diodes; and
providing a control signal by a control circuit on said shared submount, to said one or more light emitting diodes to control the intensity of said generated at least one light beam.
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32. A method of generating light with controlled chromaticity, comprising
generating a plurality of light beams by a plurality of light emitting diodes, having a plurality of wavelengths and positioned on a shared submount; -
detecting portions of said plurality of light beams by a plurality of light sensitive devices, wherein at least one of said plurality of light sensitive devices is formed on said shared submount underneath one of said plurality of light emitting diodes; and
controlling said plurality of light emitting diodes via a control circuit on said shared submount, to control the chromaticity of said generated at least one light beam.
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33. A method of making a light emitting device, comprising
forming a shared submount; -
forming circuitry on said shared submount; and
coupling one or more light emitting diodes selected from the group consisting of inverted light emitting diodes and non-inverted light emitting diodes to said circuitry. - View Dependent Claims (34)
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Specification