Electrochromic optical device

Details Electrochromic optical device Electrochromic optical device

1978-12-26

1981-01-20

Levy, Stewart J.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340783, 350357, G02B 514, G09F 900, G02F 101

Patent

active

042458838

ABSTRACT:
Electrically activated components such as switches, modulators, attenuators, and mode selectors are disclosed which can be used in networks of waveguides in optical communications systems. Disclosed components comprise an electrochromic medium in combination with a suitable ion source and means for producing a variable electric field across the medium. A change of color in the medium in response to variation of the electric field strength is instrumental in influencing direction and intensity of light propagating in a network.

REFERENCES:
patent: 3589794 (1971-06-01), Marcatili
patent: 3770339 (1973-11-01), Ramaswamy
patent: 3781081 (1973-12-01), Rokos
patent: 3870397 (1975-03-01), Dillon, Jr. et al.
patent: 3874779 (1975-04-01), Thiel
patent: 3883220 (1975-05-01), Taylor
patent: 3909108 (1975-09-01), Taylor
patent: 3918794 (1975-11-01), Milton
patent: 3964819 (1976-06-01), Auracher
patent: 4013000 (1977-03-01), Kogelnik
patent: 4026632 (1977-05-01), Hill et al.
patent: 4027946 (1977-06-01), Tsai
patent: 4070092 (1978-01-01), Burns
patent: 4163982 (1979-08-01), Domenico, Jr. et al.
patent: 4175836 (1979-11-01), Redman et al.

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