Data communication system using light coupled interfaces

Details Data communication system using light coupled interfaces Data communication system using light coupled interfaces

1976-04-21

1977-12-13

Murray, Richard

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

H04B 900

Patent

active

040630838

ABSTRACT:
Data communication between spaced locations is effected by interface assemblies for each location mounted in a light path. Each interface assembly includes light sensitive and/or light emitting elements for extracting and/or adding light portions to a column of light passing along the path. In one form, a typical interface unit includes back-to-back light sensitive devices and light emitting devices on opposite sides of a planar board with light transparent apertures interspersed with these transmit/receive units in a matrix configuration. The transparent apertures are arranged to pass light originating from another location and intended for still another location along the light path without disturbance. The interfacing assemblies effectively space share the coupling light column so that data communications can be established concurrently between any of the locations particularly when the light column path is formed as a closed loop. Lens systems can be included to focus the light columns on the matrix at each interface assembly and further to collimate the light emanating from the emitter matrix for transmission to downstream stations. The interfacing assemblies can be arranged to be removable from the light path without impacting data communications between remaining interface assemblies.

REFERENCES:
patent: 3319080 (1967-05-01), Cornely et al.
patent: 3801819 (1974-04-01), Ohnsorge
patent: 3851167 (1974-11-01), Levine

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