LINE ILLUMINATOR AND IMAGE READER

摘要

PROBLEM TO BE SOLVED: To provide a line illuminator in which the intensity of light in a main scanning direction is uniform and further, severe accuracy is not required when incorporated into a contact type image sensor. SOLUTION: On one side face 11 between side faces 11a and 11b in a lengthwise direction including short sides of a light transmission body 11 having a rectangular cross section, a light scattering pattern for scattering light incident to the light transmission body 11 is formed by screen-printing of white paint. Furthermore, the side face 11b opposed to the side face 11a is used as an emission plane exposed from a case 12 and C-chamfering is applied onto the edge of the side face 11a in the lengthwise direction. COPYRIGHT: (C)2006,JPO&NCIPI