| 摘要 |
<p>A photo-coupler (2) comprises multiple photo-coupling modules (21a, 21b), a third sealing member (22), a power supply pin (25) and a ground pin (28). Each photo-coupling module (21a, 21b) includes a light emitting component (211a, 211b), a light sensing component (213a, 213b), a first transparent sealing member (215a, 215b) and a second transparent sealing member (217a, 217b). In each photo-coupling module (21a, 21b), the light sensing component (213a, 213b) is provided opposite to the light emitting component (211a, 211b) so as to receive the light (212a, 212b) emitted from the light emitting component (211a, 211b), the first transparent sealing member (215a, 215b) encases the light emitting component (211a, 211b), and the second transparent sealing member (217a, 217b) encases the light sensing component (213a, 213b) and the first transparent sealing member (215a, 215b). The third sealing member (22) encases these second transparent sealing members (217a, 217b) so as to cut off the light from outside. In the third sealing member (22), these light sensing components (213a, 213b) are electrically connected to the power supply pin (25) separately, and electrically connected to the ground pin (28) separately.</p> |
