| 摘要 |
The invention provides a light device which can irradiate ultraviolet light with consistent peak intensity and a plurality of wave lengths on a peripheral surface of a drum. The light device irradiates light on sheet-shaped irradiation objects attached to and movable along part of the peripheral surface of a cylindric drum, and comprises a light source composed of a plurality of light elements configured in first and second directions, a pair of rectangular reflectors arranged in the second direction separating from optical axes of the plurality of light elements, and a plurality of optical units for guiding out light from the light source through the pair of rectangular reflectors, and emitting regulated emission angles and light amount relative to the drum, wherein the plurality of optical units emit are composed of N*M (M is an integer greater than 1) optical units with more than N (is an integer greater than 2)different wave lengths, emission surfaces of the plurality of optical units are configured on specified base plates, and a distance between the pair of reflectors of each optical element is set according to a distance between a base plate of an optical axis and the peripheral surface of the drum. |
