ULTRAVIOLET LIGHT PROCESSOR ANDMETHOD OF EXPOSING SURFACES TO ULTRAVIOLET LIGHT

摘要

Ultraviolet light processors which expose the central region of the surface of a workpiece to more ultraviolet light than the edges are provided with secondary sources of ultraviolet light which expose the edges to more ultraviolet light than the central region. The central region and the edges are therefore exposed to approximately equal total amounts of ultraviolet energy per unit area.