| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light transmission body, a linear light source and an image sensor module such that light beams differing in wavelength can be uniformly emitted respectively and contents of an object to be read can be read with uniform hue. <P>SOLUTION: The light transmission body 4 has a light incident surface 4a provided at an end positioned in a main scanning direction (x), a light reflective surface 4b extending in the main scanning direction (x) and reflecting light incident from the light incident surface 4a in a direction z', and a light projection surface 4c projecting the light traveling from the light reflective surface 4b as linear light extending in the main scanning direction (x), the light reflective surface 4b having a fine roughened surface 42 positioned closely to the light incident surface 4a and an uneven surface 43 positioned more apart from the light incident surface 4a than the fine roughened surface 42 and having a plurality of grooves 43a arrayed in the main scanning direction (x). <P>COPYRIGHT: (C)2009,JPO&INPIT |
