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Compact LED downlight with cuspated flux-redistribution lens
Compact LED downlight with cuspated flux-redistribution lens
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机译:紧凑的LED筒灯,带有弯折的光通量分配透镜
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摘要
A lighting device has a light source, a reflector dish with a central opening facing the light source, and a lens between the light source and the reflector dish. The lens is so arranged that light emitted from the source towards the central opening of the reflector dish is diffracted away from the central opening. The reflector dish is arranged to reflect light received from the source through the lens back past the lens and source.
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