Abstract: Linear lamp energy output is tuned by adjusting the reflectivity of reflectors or shade members used to direct, focus and filter energy output of a linear bulb. Reflectivity is reduced in areas of the reflector contributing to high irradiance levels in a target area allowing, for example, overall equalization of irradiance across the target area. An outer surface of the linear bulb may have a modified diameter, light transmission reducing surface treatment or an added sleeve to linear bulb areas contributing to irradiance levels in specific locations in the target area that are higher than desired. Alternatively and or additionally, a lens or shade member having a graduated convergence, reflectivity and or transmisivity may be used.

Abstract: A UV curing system includes a light source, which produces UV light and non-useful light (heat energy), a shade member having a lamp-side surface that reflects light and provides thermal insulation to the target substance, and a housing having an internal reflecting surface. The shade member is situated between the light source and the target substance so that all, or most, light from the light source does not directly strike the target substance. The housing is situated on the opposite side of the light source from the barrier and partially encloses the light source.