| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laser radar device that can effectively prevent a laser beam from inviting erroneous detection attributable to internal reflections of the beam from a transmission plate. <P>SOLUTION: In a laser radar device 1, a rotational reflecting mechanism 40 is housed in a case 3, in which a transmission plate 5 is arranged in a configuration in which the plate covers from above a route of scanning by a laser beam from a concave mirror 41 disposed in the rotational reflecting mechanism 40; a restraining cover 80 is further arranged in a configuration in which the cover surrounds from outside a reflected beam route along which a reflected beam from the concave mirror 41 reaches a photodiode 20; and the restraining cover 80 is so configured as to reduce by diffuse reflection an internal reflected beam that results from reflection on the transmission plate 5 by some part of the laser beam reflected from the concave mirror 41 toward space. <P>COPYRIGHT: (C)2012,JPO&INPIT |
