Optical display utilizing thermally formed bubble in a liquid co

Details Optical display utilizing thermally formed bubble in a liquid co Optical display utilizing thermally formed bubble in a liquid co

1984-01-16

1987-02-03

Sikes, William L.

Communications: electrical

Land vehicle alarms or indicators

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

350 9630, 350 9634, 350 9610, 350 9624, 350363, 340758, 340771, 358901, 40547, 362 32, G02B 620, G09G 304, G09F 1300, F21V 704

Patent

active

046405925

ABSTRACT:
An optical device comprises an optical waveguide having, as a basic unit, a core layer of a liquid having a relatively high refractive index and a clad layer having a relatively low refractive index and covering said core layer, and a heat-generating means for heating a part of said core layer to form a vapor bubble in said liquid of said core layer.

REFERENCES:
patent: 3612653 (1971-10-01), Rajchman
patent: 3653739 (1972-04-01), Strack
patent: 4195907 (1980-04-01), Zamja et al.
patent: 4422719 (1983-12-01), Orcutt
patent: 4466697 (1984-08-01), Daniel
patent: 4519017 (1985-05-01), Daniel

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