| 摘要 |
<p>PURPOSE:To constitute many circuits by means of one rotary photocoupler by using an optical element for reversing an image formed by an erecting prism to constitute the rotary photocoupler. CONSTITUTION:The optical element for erecting an image is arranged between the 1st and 2nd members 28, 38 both of which have optical communication elements and 1st and 2nd members 28, 38 are rotated in the reverse direction against the optical element to make respective optical communication elements arranged on the 1st and 2nd members 28, 38 to always correspond at the rate of 1 to 1. Namely, a light emitting element 30b and a light receiving element 32b on the 1st member 28 are arrayed so as to correspond to a light receiving element 32a and a light emitting element 30b on the 2nd member 38 at the rate of 1 to 1. Consequently, optical signals from many circuits can be transmitted by one rotary photocoupler.</p> |
