Illumination – Light source and modifier – Including reflector
Patent
1996-12-30
1999-10-26
Sember, Thomas M.
Illumination
Light source and modifier
Including reflector
362343, 362346, 362348, 362309, 362332, F21V 706
Patent
active
059715685
ABSTRACT:
An optical device and a multisurface reflector which can be used for this purpose, which has high uniformity of the illumination intensity on the entire surface of an area to be illuminated, and a small shape, and in which a high utilization factor of the light can be obtained is achieved according to the invention by there being a multisurface concave reflector which is composed of numerous mirror elements which combine to form a concave reflection surface of a generally oval shape. A light source lamp is arranged such that an emission part of it is positioned along the center axis of the multisurface reflector, and a lens plate is located in front of the multisurface reflector on a plane perpendicular to its center axis. The lens plate a plurality of lens elements which each correspond number to the number of mirror elements on the reflector. Furthermore, according to the invention, each mirror element of the multisurface reflector has a first focal point positioned in the emission part of the light source lamp, and another focal point is positioned in a corresponding lens element of the lens plate. The light from the emission part of the light source lamp is divided by each mirror element, and this divided light is superimposed by the respective lens element in an area to be illuminated.
REFERENCES:
patent: 2186123 (1940-01-01), Rantsch et al.
patent: 4234247 (1980-11-01), Dorman
patent: 4916585 (1990-04-01), Nino
patent: 4972307 (1990-11-01), Takatsuji et al.
patent: 5707141 (1998-01-01), Yamamota et al.
patent: 5727874 (1998-03-01), Yamamoto et al.
Safran David S.
Sember Thomas M.
Ushiodenki Kabushiki Kaisha
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