Rod-shaped light guide and lighting arrangement for a scanner, photocopier or similar where the light arrangement is such that there is no light loss from the source and the light at the image is homogenous and of uniform intensity

摘要

Light dispersion shape (13) is arranged above the curved surface (12) of a concave mirror. Dispersed light that is reflected from the surface (12) is emitted from a plane surface and focussed at a pre-determined focal point. If the focal point and the image surface are aligned then light from the dispersion shape (13) reaches the image surface without loss and with a uniform spatial intensity. Independent claims are made for rod- type lighting systems for use with scanning systems.