Method to optimize micro-optic lens in LED flashlight...

Details Method to optimize micro-optic lens in LED flashlight... Method to optimize micro-optic lens in LED flashlight...

2011-03-29

2011-03-29

Bruce, David V (Department: 2875)

Illumination

Light source and modifier

C359S742000

Reexamination Certificate

active

07914174

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.

REFERENCES:
patent: 6473238 (2002-10-01), Daniell
patent: 6587276 (2003-07-01), Daniell
patent: 6721101 (2004-04-01), Daniell
patent: 2003/0112523 (2003-06-01), Daniell

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