Illumination – Light source and modifier – Including reflector
Patent
1994-12-21
1996-09-17
Gromada, Denise L.
Illumination
Light source and modifier
Including reflector
362 61, 362328, 362346, F21M 300
Patent
active
055561942
ABSTRACT:
The front opening of a lamp space with a bulb disposed therein is covered with a lens. The lens is segmented into five sectional areas. Cylindrical steps of which the axes are vertically oriented are formed on the rear side of these sectional areas. These cylindrical steps are arrayed in a zig-zag fashion such that the cylindrical steps in adjacent sectional areas are shifted from each other approximately half the width of a single cylindrical step.
REFERENCES:
patent: 3222516 (1965-12-01), Miles
patent: 4332438 (1982-06-01), Green
patent: 5307246 (1994-04-01), Schmid et al.
Natsume Kazunori
Taki Nobuhiro
Gromada Denise L.
Koito Manufacturing Co. Ltd.
Raab Sara Sachie
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