Multicolor illumination device using moving plate with wavelength conversion materials

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United States of America Patent

PATENT NO RE48107
SERIAL NO

15088548

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Abstract

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A multicolor illumination device using an excitation light source and a multi-segmented moving plate with wavelength conversion materials (e.g. phosphors) is disclosed. The exciting light source is a light emitting diode or a laser diode emitting in the UV and/or blue region. The wavelength conversion materials absorb the excitation light and emit longer wavelength light. Each segment of the moving plate contains a different wavelength conversion material or no wavelength conversion material. The plate is supported to move so that different segments are exposed to the excitation light at different times. The plate may be a wheel or rectangular in shape and rotates or oscillates linearly. When the plate moves, light of different colors is generated sequentially in time by the different wavelength conversion materials in different segments of the plate. The multicolor illumination device may be used in a projector system having a microdisplay imager for image display.

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Patent Owner(s)

Patent OwnerAddress
APPOTRONICS CORPORATION LIMITED21F 22F HIGH-TECH ZONE UNION TOWER 63 XUEFU ROAD YUEHAI STREET NANSHAN DISTRICT SHENZHEN GUANGDONG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Yi Pleasanton, US 917 5421
Xu, Li Saratoga, US 397 7618

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