G - Physics
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G02F 1/137 (2006.01) G02F 1/133 (2006.01) G02F 1/1333 (2006.01) G02F 1/29 (2006.01)
Patent
CA 1304489
ABSTRACT OPTICAL DEVICES A liquid crystal device (5) having smectic phase liquid crystal material in two transparent states of differing molecular orientation, each state presenting a different refractive index to polarised light transmitted therethrough, may be utilised to perform various optical junctions. For example, switchable waveguides (6,7) a ring resonator or a diffraction grating may be produced by appropriate arrangment of the material in the two states. Figure 1
533829
British Telecommunications Public Limited Company
G. Ronald Bell & Associates
Mallinson Stephen R.
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