Illumination package
AssigneeEpistar Corporation
InventorsMin-Hsun Hsieh, Chou-Chih Yin
Life of this patent
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Abstract
An illumination package is disclosed in the invention. The illumination package includes an optical element, package base, and a light emitter. The optical element is designed to redirect a majority of light emitted from the light emitter to a direction approximately perpendicular to a longitudinal axis of the optical element. In one embodiment, the optical element includes an flared portion and a base portion. The flared portion is constructed by an upper surface forming a recess, a side surface adjacent to the upper surface and curved, and a lower surface connecting to the base portion. In another embodiment, a concave lens is formed on the upper surface.
Claims20
An optical element comprised of a light-pervious material, comprising:
- an upper surface formed by a refractive index interface to reflect light from a light emitter and forming a recess on said light-pervious material;
- a bottom surface opposite to said recess and through which light entering into said light-pervious material;
- and
- a side surface curved to be adjacent to said upper surface and far from said recess.
Dependencies are inferred from the claim text.