Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1978-12-26
1980-12-23
Levy, Stewart J.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340763, 340783, 350363, G02B 514, G09F 900, G02F 129
Patent
active
042406935
ABSTRACT:
Electrically activated optical switches, couplers, and modulators are disclosed which can be incorporated in waveguide networks in optical communications systems. Disclosed devices comprise an electroplating medium in combination with a suitable source of an electric field whose strength can be varied to cause transition of the electroplating medium between plated and unplated states. Changes of reflectivity and refractive index are the bases of switching and coupling applications, respectively.
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Johnson Leo F.
Singh Shobha
Van Uitert LeGrand G.
Bell Telephone Laboratories Incorporated
Businger Peter A.
Levy Stewart J.
Wilde Peter V. D.
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