Title:
【発明の名称】光学素子
Document Type and Number:
Japanese Patent JPS63503095
Kind Code:
A
Abstract:
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 functions. 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.
Inventors:
Marinson Stephen Robert
Application Number:
JP50216187A
Publication Date:
November 10, 1988
Filing Date:
March 31, 1987
Export Citation:
Assignee:
British Telecommunications Public Limited Company
International Classes:
G02F1/13; G02F1/133; G02F1/1333; G02F1/137; G02B6/12; G02F1/29; G02F1/295; G02F1/313; (IPC1-7): G02B6/12; G02F1/13; G02F1/29; G02F1/31
Domestic Patent References:
| JPS50118741A | 1975-09-17 | |||
| JPS5522772A | 1980-02-18 | |||
| JPS58123506A | 1983-07-22 | |||
| JPS5969732U | 1984-05-11 | |||
| JPS59143131U | 1984-09-25 |
Attorney, Agent or Firm:
Naotaka Ide