| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an optical information reader for improving reading precision. <P>SOLUTION: Openings 23 of diaphragms 22 arranged in the neighborhood of two illuminating light sources 21 are formed so that the opening width in the opening shape can be made longer at proximity sides 25 than at isolation sides 24. Then, a longitudinal central section Lfa as a part of a band-shaped illumination light Lf is configured such that the mutual rays of light to be output from one side opening sites 23a including the isolation sides 24 of the both openings 23 are overlapped, and a longitudinal edge section Lfb as the residual section of the band-shaped rays of light Lf is configured of the rays of light to be output from the other side opening sites 23b including the proximity sides 25 of the both openings 23. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
