Novel method to optimize micro-optic lens in led flashlight application
AssigneeVisEra Technologies Company Limited
InventorsChih-Chiang HO, Hsiao-Wen LEE
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Abstract
A micro-optic lens is disclosed. The micro-optic lens includes a substrate; and a lens element on the substrate, wherein the lens element includes a flat surface and an annularly grooved surface including first facets and second facets, and wherein the first facets collimate a light effectively and the second facets are parallel to a light. The micro-optic lens can decrease the draft loss and collimate the emitted light beams to increase the light efficiency. Further, the present invention also provides a method for designing angles of micro-optic lenses.
Claims21
A micro-optic lens, comprising a substrate;
- and a lens element on the substrate, wherein the lens element includes a flat surface and an annularly grooved surface comprising first facets and second facets, wherein the first facets collimate a light, and second facets are substantially parallel to the light.
A light emitting diode package, comprising:
- a light emitting device having a light source;
- and
- an optical section surrounding the light emitting device, wherein the optical section comprises a micro-optic lens, and the micro-optic lens comprises:
- a substrate;
- and a lens element on the substrate, wherein the lens element includes a flat surface and an annularly grooved surface comprising first facets and second facets, and wherein the first facets collimate a light and second facets are substantially parallel to a light emitted from the light source.
A method for designing angles of micro-optic lens, comprising
- providing a light source;
- providing a lens element having first facets and second facets;
- optimizing the first facets to collimate light beam effectively;
- and
- designing second facets almost parallel to a light beam emitted from the light source.
Dependencies are inferred from the claim text.