Invention Grant
US08662713B2 Lens and lighting device including the same 有权
透镜和照明装置包括相同的

Lens and lighting device including the same
Abstract:
Disclosed is a lens including a light emitting surface. The light emitting surface of the lens according to the embodiment of the present invention has a coordinate obtained by subtracting a Bezier coordinate corresponding to an aspheric coordinate from the aspheric coordinate.
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