| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an imaging device having not only a forward visual field but also a lateral visual field and being advantageous for illuminating not only the forward visual field but also the lateral visual field. <P>SOLUTION: A primary mirror 2 and a secondary mirror 3 are arranged in such a way that incident light 16a passed through a transparent cover 4 and reflected by, in the order of, a first reflection surface 6 and a second reflection surface 8 enters a first opening 5 and that incident light 15a passed through a lens 9 enters the first opening 5. An imaging section 11 is arranged to receive the incident light 16a and 15a entering the first opening 5. The transparent cover 4 forms an incident surface 4a to which light from a light source 20 enters and an exit surface 4b from which light entered from the incident surface 4a goes out. A third reflection surface 25 that reflects light from the light source 20 to the outside of the transparent cover 4 is formed on at least one side surface of the primary mirror 2 and the secondary mirror 3. <P>COPYRIGHT: (C)2012,JPO&INPIT |
