| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a transmission device for optical communication which allows the emission direction of parallel rays of light to be quickly and largely changed. <P>SOLUTION: A transmission device (1) is provided with a light source (11), a relay lens (12), a mirror (13), and a collimator lens (14), and light from the light source is made into a convergent light by the relay lens, and the convergent light is made into approximately parallel rays of light by the collimator lens. The mirror not only reflects the convergent light from the relay lens but also turns in two orthogonal directions to change the direction of the convergent light going toward the collimator lens. The collimator lens makes the variation of the direction of emitted approximately parallel rays of light larger than that of the direction of light from the mirror. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
