Patent ID: 6450664
Filing Date: 2002-09-17
Classification: F21V,F21Y,G01N,Y10S

Abstract:
A linear illumination unit comprising a plurality of light sources mounted on a housing in a linear direction, and a lens mounted to focus light emitted by the light sources to provide a line of light,the plurality of light sources include light emitting diodes having a viewing angle in excess of 60Â°, and light is spread from the diodes to the lens, and the lens allows spread in the linear direction and limits spread of the light in a direction orthogonal to the linear direction, the housing having open ends to permit spread of light in the linear direction beyond the open ends of the housing, and the lens is mounted with respect to the plurality of light sources to allow light emitted by a neighboring unit, and said neighboring unit having a plurality of light sources, and light emitted from said plurality of light sources enters and is focused by the lens.