| 摘要 |
<p>PURPOSE:To remarkably miniaturize the entire body by a method wherein a light emitting diode and a light receiving element are mounted on the same plane. CONSTITUTION:Four lead frames 1-4 of a pair by two pieces on the same plane in the same direction are taken out. The light emitting diode 6 is die- bonded on the frame 1 of one side pair, and the light receiving element 7 is die- bonded on the frame 3 of the other side pair. The diode 6 and the element 7 are respectively joined by lead wires between the other lead frames which constitute the pairs, and collectively wrapped with a photo-transmitting material 10. The outside of the material 10 and one end parts of the four lead wires are packaged with a reflecting material 11. Even in the presence of the diode 6 and the element 7 on the same plane, a light is securely guides because they are joined by the material 10. Besides, not only the entire body becomes small, but also the number of parts can be reduced.</p> |
