Illumination – Elongated source light unit or support – With or including transparent or translucent member
Patent
1991-10-09
1992-07-28
Cole, Richard R.
Illumination
Elongated source light unit or support
With or including transparent or translucent member
362225, 362241, 362297, 362812, 40564, F21S 300, F21V 1310
Patent
active
051345536
ABSTRACT:
In an illuminating device, in which a plurality of straight tube type discharge lamps B are arranged in parallel with an interval and there is disposed a translucent sheet a for advertising display in front of a row of the lamps, a reflector C is arranged behind each of the lamps B. This reflector C comprises a first reflecting plate C1 protruding in a V-shape backward to left and right so as to reflect light emitted backward from the lamp obliquely forward to left and right and to illuminate a central region between adjacent lamps on the translucent sheet; a pair of second reflecting plates C2, each of which is contiguous to one end of the V-shaped first reflecting plate and reflects light emitted obliquely backward from the lamp so as to illuminate a wide region including the central region between adjacent lamps on the translucent sheet; and a pair of third reflecting plates C3, each of which is contiguous to an end of each second reflecting plates, which is not contiguous to the end of the V-shaped first reflecting plate, so as to reflect light emitted obliquely backward by the lamp and to illuminate a region including the central region between adjacent lamps on the translucent sheet.
REFERENCES:
patent: 2335735 (1943-11-01), Campen
patent: 4388675 (1983-06-01), Lewin
patent: 4747027 (1988-05-01), Rieger
Cole Richard R.
Nakagawa Toshiaki
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