Muncy, Geissler, Olds & Lowe, P.C.
Light control lens and light source device using the same
The present disclosure discloses a light control lens and a light source device using the same. The light control lens comprises a light emitting surface, a light incident surface, and a total internal reflection (TIR) inclined surface. The light incident surface and the TIR inclined surface are at the opposite side of the light emitting surface. The TIR inclined surface is at the peripheral side of the light incident surface. Between the TIR inclined surface and a plane perpendicular to an optical axis of the light control lens, there is an included angle α of less than 45°. An effective radius of the light emitting surface is larger than the distance from an arbitrary point on the light emitting surface to a plane through an incident origin and perpendicular to the optical axis along the optical axis direction.
E-PIN OPTICAL INDUSTRY CO., LTD.
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Huang-Chang Chih-Peng Chin-Hsin
Chen Wang Tu