| US 7,578,600 B2 | ||
| LED light assembly with reflector having segmented curve section | ||
| Robert A. Czajkowski, Tinley Park, Ill. (US) | ||
| Assigned to Federal Signal Corporation, Oak Brook, Ill. (US) | ||
| Filed on Oct. 12, 2004, as Appl. No. 10/962,875. | ||
| Claims priority of provisional application 60/510192, filed on Oct. 10, 2003. | ||
| Prior Publication US 2005/0094393 A1, May 05, 2005 | ||
| Int. Cl. F21V 13/00 (2006.01) | ||
| U.S. Cl. 362—243 [362/240; 362/241; 362/247; 362/249.01; 362/297; 362/346] | 14 Claims |
| 1. A light assembly comprising:
an LED, the LED operable to emit light substantially along an optical output axis; and
a reflector, the reflector having a reflective surface, the reflective surface including a curve section, the curve section
being disposed in predetermined relationship relative to a principal axis, the principal axis being in non-parallel relationship
with the optical output axis, the curve section including:
a body portion having at least two segments, with one segment being defined by a first mathematical equation and another segment
being defined by a second mathematical equation that is different than the first mathematical equation, and
first and second end portions, the first end portion including at least two first end segments with one first end segment
being defined by a third mathematical equation and another first end segment being defined by a fourth mathematical equation
that is different than the third mathematical equation, and the second end portion including at least two second end segments
with one second end segment being defined by the third mathematical equation and another second end segment being defined
by the fourth mathematical equation.
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