Invention Grant
US09046239B2 Illumination device 有权
照明装置

Illumination device
Abstract:
An illumination device includes: a light source including a plurality of light emission elements disposed adjacent to one another and phosphors; and a lens sheet including a plurality of first prisms disposed on an optical axis of the light source and disposed concentrically around the optical axis of the light source, wherein a plurality of second prisms reaching up to an outer peripheral portion of the lens sheet is radially formed around the optical axis of the light source on a surface of the lens sheet where the first prisms are formed.
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