Illumination – Light fiber – rod – or pipe – With intensity control
Patent
1998-03-30
1999-10-19
O'Shea, Sandra
Illumination
Light fiber, rod, or pipe
With intensity control
362559, 362346, F21V 714
Patent
active
059676523
ABSTRACT:
Apparatus is disclosed that efficiently projects electromagnetic radiation over a predetermined spherical sector with a tailored intensity distribution. The apparatus includes a base having a cavity and aperture that faces the spherical sector to be illuminated, with a flat, ring-shaped shoulder surrounding the aperture. The apparatus further includes a mask spaced over the aperture and a baffle projecting from the mask toward the aperture. The base, the mask, and the baffle are formed of a material having an outer surface with a significant diffuse, reflective characteristic. A source emits electromagnetic radiation (e.g., visible light) into the base cavity, and the base, mask and baffle are configured to redirect this radiation outwardly with the tailored intensity distribution (e.g., a uniform distribution) over the predetermined spherical sector (e.g., a hemisphere, or 2 .pi.steradians).
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Epling Bobby L.
Rains, Jr. Jack C.
Ramer David P.
Ritter Michael P.
Schmitt Mark G.
Advanced Optical Technologies, LLC
Honeyman Marshall
O'shea Sandra
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