Aspherical LED angular lens for narrow distribution patterns...

Illumination – Light source and modifier – Including translucent or transparent modifier

Reexamination Certificate

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Details

C362S335000, C362S800000

Reexamination Certificate

active

07993035

ABSTRACT:
The present invention discloses an aspherical LED angular optical lens for narrow distribution patterns and an LED assembly using the same. The optical lens comprises a concave surface on a source side and a convex surface on a project side. The LED assembly comprising the optical lens can accumulate light emitted from the LED die and generate a peak intensity of the narrow angular circle distribution pattern which is greater than 15° and smaller than 30°. The present invention only uses a single optical lens capable of accumulating light and forming a required distribution pattern to satisfy the requirement of a luminous flux ratio greater than 85% and the requirement of an illumination, a flash light of a cell phone or a flash light of a camera.

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