Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1990-01-10
1991-10-08
LaRoche, Eugene R.
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359275, 359265, G02F 101
Patent
active
050548948
ABSTRACT:
An electrochromic light-modulating process, by reflection or transmission, in which an electrolytic material comprises a mixture of solid consistency of a (a) water-soluble salt of a metal which can be cathodically deposited from an aqueous solution of one of its ions, (b) an initially water-soluble film-forming polymer resin, and (c) water. A layer of electrolytic material is produced. A first transparent electrode is arranged in contact with a first face of the layer. A second electrode is arranged in contact with a second face of the layer, thus forming an elementary light-modulating cell. During a write phase of a certain duration, there is applied to the working electrode an electrical voltage which is negative with respect to that of the second electrode, such that, during this write phase, there is written at least one picture element. During at least one erase phase, subsequent to a write phase, there is made to flow between the electrodes an electrical current whose direction is opposite to that of the electrical current during the write phase such that, during this erase phase, the previously written picture element is erased. The process may be repetitive, and is able to comprise several pairs of one write phase and one erase phase.
REFERENCES:
patent: 4188095 (1980-02-01), Nishimura et al.
patent: 4285575 (1981-08-01), Imataki et al.
patent: 4538158 (1985-08-01), Warszawski
patent: 4571029 (1986-02-01), Skotheim et al.
patent: 4573768 (1986-03-01), Polak et al.
patent: 4596722 (1986-06-01), Warszawski
patent: 4801195 (1989-01-01), Kawai et al.
Alpine Polyvision, Inc.
LaRoche Eugene R.
Shingleton Michael B.
LandOfFree
Light modulating process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light modulating process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light modulating process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-253783