| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical sensor which allows the increase of the number of components and the increase of physical constitution to be prevented, respectively.SOLUTION: The optical sensor includes a raindrop detection part 10 for detecting raindrops, an optical detection part 30 for detecting incident light, and a housing part 50 which houses these and is fixed to a transparent to-be-fitted member 90. The raindrop detection part includes a light emitting device 11, a first light receiving device 12, and a first lens 13 which guides the light irradiated from the light emitting device to the to-be-fitted member and guides the light reflected by the to-be-fitted member to the first light receiving device. A position detection part includes a second light receiving device 31, a regulation part 32 which regulates the incident angle of light entering the second light receiving device, and a second lens 33 which focuses the light regulated by the regulation part on the second light receiving device. The first lens has properties which blocks visible light and allows the light from the light emitting device to pass through. The regulation part is a slit formed on a part of the first lens. |
