Optics: measuring and testing – By dispersed light spectroscopy – With monochromator structure
Patent
1989-04-27
1990-03-20
McGraw, Vincent P.
Optics: measuring and testing
By dispersed light spectroscopy
With monochromator structure
350336, 350347V, 350379, G01J 306, G01J 314, G02F 1133
Patent
active
049096265
ABSTRACT:
An optical component comprises a thin film of an electrically controllable birefringent material confined between substantially planar surfaces. A respective electrode structure is provided on each of the surfaces, each electrode structure being patterned such that an electric field applied across the film by means of electrode structures, when a voltage is applied therebetween, causes modulation of the refractive index of the material such that the wavefront of electromagnetic radiation incident of the component and transmitted through the thin film is divided into Fresnel zones.
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Patent Abstracts of Japan, vol. 10, No. 6, A-6.020402 (Matsushita Denki Sangyo K.K.). IEEE Transactions of Elctron Devices, col. Ed-26, No. 11, Nov. 79, pp. 1734-1737, Hori et al., "Field-Controllable Liquid Crystal Phase Granting".
Clark Michael G.
Purvis Alan
McGraw Vincent P.
The General Electric Company p.l.c.
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