Illumination – Light source and modifier – Including reflector
Patent
1992-04-16
1994-12-13
Husar, Stephen F.
Illumination
Light source and modifier
Including reflector
362297, 362304, 362346, F21V 700
Patent
active
053734300
ABSTRACT:
A vehicular warning light has multiple segments of concave parabolic reflectors assembled for cooperative spreading of the light emitted from a single electric lamp to form an elongated wide angle beam of light in a horizontal plane for alerting the neighborhood to the presence and movement of the emergency vehicle. The axis of revolution of each parabolic reflector is assembled at a differing azimuth angle within the common horizontal plane and the focal points and focal planes of the respective reflectors are dispersed. The equivalent center point of the single light source is therefore defocused relative to at least some of the reflectors. The axis of the elongated light source is centered on the common horizontal plane and is parallel to the fluted light cover lens which is contoured for efficiency in light transmission from the multiple reflectors and for additional spreading and luminous uniformity.
REFERENCES:
patent: 4351018 (1982-09-01), Fratty
patent: 5008781 (1991-04-01), Nino
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