| 摘要 |
Electrical circuitry includes at least a pair of thick-film conductor circuits on a substrate. A light responsive device, such as a light actuated controlled rectifier, is connected in one circuit and a light emitting element, such as a light emitting diode, is connected in the second circuit. The diode is positioned to optically couple the photo-sensitive area of a silicon controlled rectifier by a pair of arms cantilevered from spacers connected to the thick film conductors of the second circuit.
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