| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce crosstalks at a relatively low cost effectively in an optical apparatus having a plurality of image-forming elements corresponding to a light-emitting part array (or a light-receiving part array). SOLUTION: The optical apparatus has a light-emitting means 1 where a plurality of light-emitting parts I1-I2m are arranged in an array and an image- forming means 2 where a plurality of image-forming elements L1-L2m are set corresponding to the plurality of light-emitting parts for projecting the light from the light-emitting parts. Adjacent image-forming elements of the image- forming means 2 are mutually shifted. In comparison with an arrangement in which the image-forming elements are aligned to agree with an array direction of the light-emitting parts, a distance between the adjacent image-forming elements can be made large and crosstalks can accordingly be reduced.</p> |
