| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a light receiving module that is small and easy to assemble. <P>SOLUTION: In the light receiving module for receiving a plurality of input light beams, there are provided an optical element having a plurality of light exit parts, an optical element having a plurality of light incident parts, and a graded index lens that is installed between the above two optical elements to converge a plurality of exiting light beams from the plurality of light exit parts each on the plurality of light incident parts. <P>COPYRIGHT: (C)2007,JPO&INPIT |
