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Hussein S El Ghoroury, Dale A McNeill: LED-based high efficiency illumination systems for use in projection systems. Ostendo Technologies, Blakely Sokoloff Taylor & Zafman, February 15, 2011: US07889430 (70 worldwide citation)

The dilemma encountered in most projection systems of having the etendue of the LED-based light source used often being much larger than the etendue of the imager used, causes such systems to have poor throughput efficiency. The etendue folding illumination systems of this invention being comprised ...


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Hussein S El Ghoroury, Dale A McNeill: LED-based high efficiency illumination systems for use in projection systems. Ostendo Technologies, Blakely Sokoloff Taylor & Zafman, November 15, 2007: US20070263298-A1

The dilemma encountered in most projection systems of having the etendue of the LED-based light source used often being much larger than the etendue of the imager used, causes such systems to have poor throughput efficiency. The etendue folding illumination systems of this invention being comprised ...


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El Ghoroury Hussein S, Mcneill Dale A: Led-based high efficiency illumination systems for use in projection systems. Ostendo Technologies, El Ghoroury Hussein S, Mcneill Dale A, BLAKELY Roger W Jr, November 22, 2007: WO/2007/133513

The dilemma encountered in most projection systems of having the etendue of the LED-based light source used often being much larger than the etendue of the imager used, causes such systems to have poor throughput efficiency. The etendue folding illumination systems of this invention being comprised ...


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