Method and apparatus for creating high efficiency even...

Details Method and apparatus for creating high efficiency even... Method and apparatus for creating high efficiency even...

2011-07-05

2011-07-05

Quach Lee, Y My (Department: 2885)

Illumination

Plural light sources

With modifier

C362S308000, C362S327000

Reexamination Certificate

active

07972029

ABSTRACT:
A surface mount LED lamp includes a central first section having a flat circular window that provides a direct view window to the source energy and having an angle equal to the total intended output viewing angle of the LED lamp thereby providing a smooth and relatively undistorted output intensity distribution. The window allows the energy from the wide angle LED source to exit the lamp with minimal distortion, creating a smooth generally cosine shaped light distribution through the intended viewing angle of the device. A second outer section has both refractive and internally reflective surfaces for the purpose of collecting the wider output angle light from the LED source thereby adding to the intensity at the outer edges of the distribution.

REFERENCES:
patent: 6536923 (2003-03-01), Merz
patent: 7347603 (2008-03-01), Ikeda et al.
patent: 7488089 (2009-02-01), Park et al.

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