The light which is reflected from the 1st reflecting interface and the aforementioned 1st reflecting interface which are categorized to the lower part of the reading

摘要

The optical type joystick, the 1st reflecting interface which is categorized to the lower part of the reading territory in order to perceive the movement of subject and the 2nd wave guide which includes the 2nd reflecting interface in order to make the light reflect which incidence is done and, the image sensor which is categorized to the lower part of the 2nd reflecting interface and, includes the light which is reflected from the 1st reflecting interface from the 1st wave guide and face with the aforementioned 1st flat convex lens section the 2nd flat convex lens section and the aforementioned 2nd flat convex lens section which include the 1st flat convex lens section which condenses. In the 1st wave guide, the 1st reflecting interface and the 1st flat convex lens section is just formed, regarding the 2nd wave guide, the 2nd flat convex lens section and the 2nd reflecting interface is just formed. It is possible, to decrease the thickness of the optical type joystick considerably by the reflecting interface and the fact that the lens is formed just it can improve refraction and the light condensing efficiently by the fact that opposing, it arranges the 1st and 2nd wave guide.