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English to Chinese: ILLUMINATION DEVICES General field: Tech/Engineering Detailed field: Patents
Source text - English (Patent Specification)
ABSTRACT OF THE DISCLOSURE
Embodiments of the present invention provide apparatuses and systems for providing illumination for projectors. Two or more sets of reflectors are used to combine light beams emitted by two or more two-dimensional arrays of light sources to provide a combined light beam with high brightness toward a pupil of a projection system. Solid state light sources, such as diode lasers and LEDs, may be used as light sources at relatively low cost and low powers, and with long lifetime.
TECHNICAL FIELD
The present application relates to illumination devices using array of reflectors.
BACKGROUND
Most high brightness projectors available now use either Xenon lamps or ultra high performance (UHP) Mercury arc lamps. High-wattage Xenon lamps are often used in projectors for digital cinema, large venues, and for fixed installations. Such projectors typically use Xenon lamps with wattage range of 2 - 6 kW, and have brightness in the range of 10,000-30,000 lumens. High-wattage Xenon lamps have relatively short lifetime, typically in the range of 500-1000 hours. UHP Mercury arc lamps are often used in compact and portable projectors for home or office use. Such projectors typically use UHP Mercury arc lamps with wattage range of 120-350 W, and have brightness in the range of 1000-5000 lumens. UHP Mercury arc lamps have a typical lifetime of about 2000 hours, which is still relatively short.
Therefore, it is desirable to have projectors that utilize light sources with much longer lifetimes while still providing suitable brightness.
English to Chinese: Contract / Agreement General field: Law/Patents Detailed field: Law: Contract(s)
Source text - English REPRESENTATIONS; DISCLAIMERS
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Translation - Chinese 聲明；免責
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