US5485355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroluminescent light sources
Assignee: Elam Electroluminescent Industries Ltd
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Filing: 1993-12-06
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Granted: 1996-01-16
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Expires: 2013-12-06
Abstract
Abstract A cable-like electroluminescent light source comprises at least two electrodes mutually disposed in such a way as to create between them an electric field when a voltage is applied to them; at least one type of pulverulent electroluminophor dispersed in a dielectric binder and disposed in such proximity to the electrodes as to be effectively excited by the electric fields when created and to emit light of a specific color, and a transparent polymer sheath encasing the electrodes and the electroluminophor.
Inventors
- 👤 Moses Voskoboinik
- 👤 Israel Baumberg
- 👤 Joseph S. Bodenheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:24
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/20; H05B33/26; Y; Y10; Y10S; Y10S428/00; Y10S428/917
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
111 words
A cable-like electroluminescent light source, comprising: a cable-like, flexible and shapeable structure including a dielectric core, a first electrode and three further electrodes wound about said dielectric core and forming a triple helix, said first and each of said three electrodes being mutually disposed in such a way as to create between them an electric field when a voltage is applied to them, at least one of said electrodes being electrically insulated, each of said three electrodes being coated with a different electroluminophor powder, emitting, when excited, light of a different color, controllable with respect to hue, saturation and brightness, and a transparent polymer sheath encasing said electrodes and said electroluminophors.
Claim 2
Dependent Claim
111 words
A cable-like electroluminescent light source, comprising: a cable-like, flexible and shapeable structure including a dielectric core, a first electrode and three further electrodes wound about said dielectric core and forming a triple helix, said first and each of said three electrodes being mutually disposed in such a way as to create between them an electric field when a voltage is applied to them, at least one of said electrodes being electrically insulated, each of said three electrodes being coated with a different electroluminophor powder, emitting, when excited, light of a different color, controllable with respect to hue, saturation and brightness, and a transparent polymer sheath encasing said electrodes and said electroluminophors.
Claim 3
Dependent Claim
132 words
A cable-like electroluminescent light source, comprising: a cable-like, flexible and shapeable structure including a dielectric core, a first electrode and three further electrodes wound about said dielectric core and forming a triple helix, said first and each of said three electrodes being mutually disposed in such a way as to create between them an electric field when a voltage is applied to them, at least one of said electrodes being electrically insulated, each of said three electrodes being coated with a different electroluminophor powder, emitting, when excited, light of a different color, controllable with respect to hue, saturation and brightness, and a transparent polymer sheath encasing said electrodes and said electroluminophors, wherein the first electrode is a common electrode and comprises a transparent, electrically conductive layer surrounding and embedding said triple helix.
Claim 4
Dependent Claim
132 words
A cable-like electroluminescent light source, comprising: a cable-like, flexible and shapeable structure including a dielectric core, a first electrode and three further electrodes wound about said dielectric core and forming a triple helix, said first and each of said three electrodes being mutually disposed in such a way as to create between them an electric field when a voltage is applied to them, at least one of said electrodes being electrically insulated, each of said three electrodes being coated with a different electroluminophor powder, emitting, when excited, light of a different color, controllable with respect to hue, saturation and brightness, and a transparent polymer sheath encasing said electrodes and said electroluminophors, wherein the first electrode is a common electrode and comprises a transparent, electrically conductive layer surrounding and embedding said triple helix.
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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) | 1999-01-15 | 1999-07-17 | 2000-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-01-15 | 2003-07-17 | 2004-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-01-15 | 2007-07-17 | 2008-01-16 | $7700.00 | Window Closed / Lapsed |