Composite cavity for enhanced efficiency of up-conversion

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United States of America Patent

PATENT NO 8270068
SERIAL NO

12833440

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Abstract

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Methods, apparatus and systems for an up-converter resonant cavity light emitting diode device includes a semiconductor light source, an up-converter to form the light emitter with up-converting materials and an electrical source coupled with the semiconductor light source for providing electrical energy to the semiconductor light source to provide a desired wavelength emitted light. The semiconductor light source is a resonant cavity light emitting diode or laser that emits an approximately 975 mm wavelength to provide electrical and optical confinement to the semiconductor light source to form a resonant cavity up-converting light emitting diode (UC/RCLED). Rows and columns of electrodes provide active matrix addressing of plural sets of UC/RCLEDs for display devices. The up-converter resonant cavity light emitting diode device has applications in head mounted projection display optical system using spectrally selective beam splitters to eliminate spectral overlap between colors and to combine the red, green and blue beams.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION INCTAMPA FL 32826

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bass, Michael Indian River Shores, US 34 960
Deppe, Dennis G Oviedo, US 29 510

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