Patent US4898454A successfully refreshed from Google Patents.
US4898454A
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Optical light switch or modulator device with a liquid crystalline composite optical component
Assignee: Corning Inc
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Filing: 1988-08-24
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Granted: 1990-02-06
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Expires: 2008-08-24
Abstract
Abstract This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline component. In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline compound.
Inventors
- 👤 Alan Buckley
- 👤 Tessie M. Che
- 👤 Thomas M. Leslie
- 👤 James B. Stamatoff
- 👤 Dagobert E. Stuetz
- 👤 Donald R. Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:59
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/52; C09K19/54; C09K2323/00; C09K2323/03; C09K2323/033
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
73 words
In an optical light switch or light modulator device the improvement which comprises an optical medium component which is a composite composition consisting of an inorganic oxide glass monolith with a microporous structure containing an encapsulated liquid crystalline component; wherein the glass monolith microporous structure has an average pore diameter in the range between about 50-300 angstroms, and substantially all of the pore diameters are within about a 100 angstrom diameter variation range.
Claim 2
Dependent Claim
73 words
In an optical light switch or light modulator device the improvement which comprises an optical medium component which is a composite composition consisting of an inorganic oxide glass monolith with a microporous structure containing an encapsulated liquid crystalline component; wherein the glass monolith microporous structure has an average pore diameter in the range between about 50-300 angstroms, and substantially all of the pore diameters are within about a 100 angstrom diameter variation range.
Claim 3
Dependent Claim
26 words
An optical light switch or light modulator device in accordance with claim 1 wherein the optical medium component is in a transparent or potentially transparent state.
Claim 4
Dependent Claim
77 words
A process for switching or modulating light transmission which comprises directing an incident fundamental light frequency into a transparent optical medium which is a composite composition consisting of an inorganic oxide glass monolith with a microporous structure containing an encapsulated liquid crystalline component; wherein the glass monolith microporous structure has an average pore diameter in the range between about 50-300 angstroms, and substantially all of the pore diameters are within about a 100 angstrom diameter variation range.
Claim 5
Dependent Claim
77 words
A process for switching or modulating light transmission which comprises directing an incident fundamental light frequency into a transparent optical medium which is a composite composition consisting of an inorganic oxide glass monolith with a microporous structure containing an encapsulated liquid crystalline component; wherein the glass monolith microporous structure has an average pore diameter in the range between about 50-300 angstroms, and substantially all of the pore diameters are within about a 100 angstrom diameter variation range.
References Cited (Backward Citations)
JPS5053A
Cited
US4048358A
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SU1068976A1
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US4765818A
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US4814211A
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US4828888A
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US4851270A
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JPH11436A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |