OPTICAL SCANNING UNIT AND IMAGE READING UNIT

摘要

PROBLEM TO BE SOLVED: To provide an optical scanning unit that can reduce a variance in optical performance in the main scanning direction. SOLUTION: The optical scanning unit 10 includes: a linear light source for emitting a light to an original G; an erect equal-magnification lens array 11 for converging reflection lights from an original G; a line image sensor 20 for receiving the lights converged by the erect equal-magnification lens array 11; and a case 12 for fixing the linear light source, the erect equal-magnification lens array 11 and the line image sensor 20. The case 12 is cambered toward the side of the line image sensor 20 in the main scanning direction of the optical scanning unit 10. COPYRIGHT: (C)2010,JPO&INPIT