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FIIG:  A23900

Entry Date:  Apr-01-1974

Concept:  

Status:  A

Applicability:  A

Type:  0

Definition:  A device containing one or more light sources (either incandescent, glow, or solid state, lamps) opticallycoupled to one or more semiconductor type photo-sensitive elements, all of which are contained in an opaque enclosure. Light generated within the device by the application of an appropriate electrical input to the light source(s) acts upon the light sensor(s) to produce a corresponding output or change in some electrical quantity or variation in some electrical property. For items in which the light in directed at another item and the reflected light is interpreted (read) see SCANNER, OPTICAL.

Basic INC:  70535

Basic Name:  COUPLER

Description:  1. (Electrical) A component which provides a means of transfer of electrical energy between two items or components while providing for impedance matching or balancing between the items. See also TRANSFORMER (as modified).