An improved linear light source or light collector for a film scanner comprising an elongated, solid, light integrating, light conducting rod having an axial port at one end thereof through which a light beam is introduced into or directed out of the rod and an output/input strip extending generally...http://www.google.es/patents/US5257340?utm_source=gb-gplus-sharePatente US5257340 - Linear coated core/clad light source/collector
