Electrically responsive light controlling device

Details Electrically responsive light controlling device Electrically responsive light controlling device

1991-11-26

1993-04-20

Arnold, Bruce Y.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

252582, G02B 2600, G02B 502

Patent

active

052047725

ABSTRACT:
A light controlling device having excellent controllability of light and solar energy transmission which comprises a suspension of anisotropic particles in an liquid dielectric medium and a pair of electrodes for applying an electric field to said suspension, and said anisotropic particles having an aspect ratio of at least 3.5 and comprising an inorganic titanium compound having an absorption coefficient of at least 5.times.10.sup.3 cm.sup.-1, especially a titanium compound of the formula: TiOxNy wherein 1.37.ltoreq.x.sup.+ y.ltoreq.1.95 and 0.15.ltoreq.y.ltoreq.0.92.

REFERENCES:
patent: 3257903 (1966-06-01), Marks
patent: 3773684 (1973-11-01), Marks
patent: 4345820 (1982-08-01), Chabrolle
patent: 4442019 (1984-04-01), Marks
patent: 4657349 (1987-04-01), Labes et al.
patent: 4663083 (1987-05-01), Marks
patent: 4919521 (1990-04-01), Tada et al.
Marks, Applied Optics, 8, 1397, (1969).

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