PHOTO SCANNER

摘要

PURPOSE: A photo scanner is provided to be easily manufactured and to be produced cheap by rotating a bubble in a circular fluid pipe at a uniform speed, by scanning as a beam which is dispersed by the bubble. CONSTITUTION: A light source(10) irradiates a beam. A collimating lens(15) changes the beam from the light source(10) into a parallel beam. A cylindrical lens(20) focuses the beam. A circular fluid pipe(30) is filled with a fluid(25). A bubble(35) is received into an interior of the circular fluid pipe(30). A pump(40) is installed at a periphery of the circular fluid pipe(30) in order to circulate the bubble(35). An open phase lens(45) is installed at the front of the circular fluid pipe(30). The beam, dispersed from the bubble(35), is phase-opened and is scanned on the photosensitive medium. The pump(40) is controlled by a controller to flow the fluid(25) at a uniform speed. According as the fluid(25) flows, the bubble(35) moves. The circular fluid pipe(30) is formed by a hollow circulating pipe to circulate the fluid(25) therein.