Illumination system in a projection copier

Details Illumination system in a projection copier Illumination system in a projection copier

G - Physics

03

B

240/149, 95/5

G03B 27/54 (2006.01) F21V 13/08 (2006.01)

Patent

CA 1264312

ABSTRACT OF THE DISCLOSURE An illumination system according to the inven- tion has three radiating units along each longitudinal side and two radiating units along each transverse side of the illumination system. The radiating units are arranged symmetrical to the imaginary center lines in longitudinal and transverse directions of the illumina- tion system. Each individual radiator unit at the trans- verse side includes a radiating source surrounded by three heat-protection filters while, in each of the three radiator units along the longitudinal side, one of the heat-protection filters is substituted by a reflector plate. The reflector plates of the left-hand and right- hand radiating sources are beveled rectangles, while the reflector plate of the middle radiating source is a rec- tangle without a beveled upper edge. Along the longitu- dinal and transverse sides of the illumination system are arranged reflectors, which consists of two reflector parts, which are detachable from each other at a separating point. The individual reflector parts consist of reflector segments which enclose different angles with one another.

519043

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