| 摘要 |
<p>PURPOSE:To miniaturize products by constituting the position information detection part of a position information detection means on a position information conversion means side. CONSTITUTION:At the other ends of rotary shafts 20a and 20b, the position information detection parts 22a and 22b are provided so as to detect the rotation amount of a sphere 19. From the position information detection parts 22a and 22b plural input-output terminals 23 to a light emitting device and a light receiving device project upward and they are connected to a print substrate 24 which constitutes a circuit converting a signal according to the detection values of the position information detection parts 22a and 22b, and also a cord 25 for an input-output is connected to the print substrate 24 to connect a computer. Since the position information detection parts 22a and 22b are arranged close each other, the print substrate 24 is made small.</p> |
