Illumination – Light source and modifier – Fluorescent type
Patent
1998-03-26
2000-07-25
O'Shea, Sandra
Illumination
Light source and modifier
Fluorescent type
362147, 362346, F21K 2700
Patent
active
060929138
ABSTRACT:
A fluorescent fixture having high efficiency and a low profile is provided. The fixture includes a housing having a central well with a pair of tubular fluorescent bulbs mounted therein and extending in a lengthwise direction. Each bulb is surrounded by a double-trough specular reflector with a local peak that extends from the base of the well, toward the bulb. The local peak is positioned generally along a centerline through the bulb. A pair of maximum trough bottoms are positioned on each of opposing sides of the centerline. The reflector configuration reflects a substantial amount of incident light away from the bulb surface and out from the fixture opening where it is needed. The housing includes a pair of sloped outer sides that extend in a widthwise direction away from the reflector outwardly to opposing widthwise edges of the housing to enable light reflected from the reflector to be transmitted toward the widthwise edges of the housing free of obstruction thereto. The fluorescent bulbs can be mounted on brackets that move in a widthwise direction and the reflector is attached to the brackets to flexibly move in response to widthwise movement of the brackets.
REFERENCES:
patent: 3748460 (1973-07-01), Price
patent: 4344111 (1982-08-01), Ruud
patent: 4794317 (1988-12-01), Brass
patent: 5394317 (1995-02-01), Grenga
Loginov William A.
O'shea Sandra
RENOVA Technologies, LLC
Sawhney Hargobind S.
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