Cylindrical irradiance-mapping lens and its applications to...

Details Cylindrical irradiance-mapping lens and its applications to... Cylindrical irradiance-mapping lens and its applications to...

2007-09-25

2007-09-25

O'Shea, Sandra (Department: 2875)

Illumination

Plural light sources

With modifier

C362S246000, C362S335000, C362S249070

Reexamination Certificate

active

11332738

ABSTRACT:
A cylindrical irradiance-redistribution lens is positioned over a line of LEDs, and is shaped to redistribute their light for uniformly illuminating a nearby planar target, such as shelves, signs, or walls. The lens shape is calculated via matching the cumulative lateral flux functions of the line of LEDs with that of the uniformly illuminated planar target. Numerous preferred embodiments are disclosed for a variety of illumination geometries.

REFERENCES:
patent: 4698730 (1987-10-01), Sakai et al.
patent: 4734836 (1988-03-01), Negishi
patent: 6361186 (2002-03-01), Slayden
patent: 6834979 (2004-12-01), Cleaver et al.
patent: 7011421 (2006-03-01), Hulse et al.

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