US4887890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled transparency
Assignee: Dornier System GmbH
•
Filing: 1987-12-21
•
Granted: 1989-12-19
•
Expires: 2007-12-21
Abstract
Abstract Pane or foil with controllable transparency and light transmission comprises a layer configuration between two transparent carriers such as glass panes, foils or the like; transparent electrodes are disposed on the carriers; a tansparent electrolyte and an active polymer layer are disposed between the electrodes; the active polymer layer has light absorption in the visible spectrum range characterized by a variation in the case of a reversible chemical doping reaction; preferably an additional transparent layer is included to serve as reversible source for storage and yielding of ions, the additional layer is juxtaposed to the electrolyte.
Inventors
- 👤 Werner Scherber
- 👤 Thomas Meisel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:06
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00421; B60H1/00428; G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1516; G02F1/15165; G05; G05D; G05D23/00; G05D23/19; G05D23/1919; G05D23/192; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/88
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
157 words
Pane or foil with controllable transparency and light transmission comprising: at least one transparent carrier; a first and a second transparent electrode; said first electrode being disposed on said one carrier; a transparent electrolyte and an active polymer layer disposed on said first electrode, said active polymer layer having a light absorption in the visible spectrum range characterized by a variation in the case of a reversible chemical reaction being an electrochemically induced doping process; a transparent ion layer made of ITO and being disposed such that the electrolyte is situated between the ion layer and the active polymer layer, the ion layer serving as a reversible ion receiving and ion storage layer as well as a yielding source for ions respectively to receive such ions from the polymer layer and to provide such ions to the polymer layer; and said second electrode being disposed so that the electrolyte and the polymer layer is between the electrodes.
Claim 2
Dependent Claim
157 words
Pane or foil with controllable transparency and light transmission comprising: at least one transparent carrier; a first and a second transparent electrode; said first electrode being disposed on said one carrier; a transparent electrolyte and an active polymer layer disposed on said first electrode, said active polymer layer having a light absorption in the visible spectrum range characterized by a variation in the case of a reversible chemical reaction being an electrochemically induced doping process; a transparent ion layer made of ITO and being disposed such that the electrolyte is situated between the ion layer and the active polymer layer, the ion layer serving as a reversible ion receiving and ion storage layer as well as a yielding source for ions respectively to receive such ions from the polymer layer and to provide such ions to the polymer layer; and said second electrode being disposed so that the electrolyte and the polymer layer is between the electrodes.
Claim 3
Dependent Claim
54 words
Pane or foil in accordance with claim 1 comprising layer thicknesses as follows: said electrodes each having a thickness between 1/10 and 1/2 micrometers; said polymer layer having a thickness between 1-10 micrometers; said transparent ion layer having a thickness between 2 to 5 micrometers; and said electrolyte having a thickness between 5-10 micrometers.
Claim 4
Dependent Claim
38 words
Pane or foil in accordance with claim 1 wherein said electrodes are one of the following: SnO 2 : In 2 O 3 ; SnO 2 ; In 2 O 3 ; Mo; Pt; Pd; Rh; Ti; ZnSe.
Claim 5
Dependent Claim
21 words
Pane or foil in accordance with claim 1 said polymer layer being either polyaniline; polyaniline-3-sulfonic acid; polypyrol; polythiophene or poly-O-phenyl diamine.
Claim 6
Dependent Claim
36 words
Pane or foil in accordance with claim 1 said electrolyte being one of the following: a polymeric sulfonic acid; a polymeric carbonic acid; buffered H 2 SO 4 ; HCl; buffered H 2 ClO 4 .
Claim 7
Dependent Claim
111 words
Rigid or flexible panel with controllable transparency and light transmission comprising: two transparent carriers; a first and a second transparent electrode respectively deposited on said carrier; a transparent electrolyte and an active polymer layer disposed between said electrodes, said active polymer layer having a light absorption in the visible spectrum range characterized by a variation in the case of a reversible chemical reaction through reversible doping: and an ITO layer also being transparent and serving as reversible source for storage and yielding of ions so that the electrolyte is between the ITO layer and the polymer layer and being disposed to provide said ions or receiving them from said polymer layer.
Claim 8
Dependent Claim
111 words
Rigid or flexible panel with controllable transparency and light transmission comprising: two transparent carriers; a first and a second transparent electrode respectively deposited on said carrier; a transparent electrolyte and an active polymer layer disposed between said electrodes, said active polymer layer having a light absorption in the visible spectrum range characterized by a variation in the case of a reversible chemical reaction through reversible doping: and an ITO layer also being transparent and serving as reversible source for storage and yielding of ions so that the electrolyte is between the ITO layer and the polymer layer and being disposed to provide said ions or receiving them from said polymer layer.
Claim 9
Dependent Claim
59 words
Panel in accordance with claim 6 comprising layer thicknesses as follows: said electrodes each having a thicknesses between 1/10 and 1/2 micrometers; said ion storing and yielding layer interposed in juxtaposition to said electrolyte and having a thickness between 2-5 micrometers; said polymer layer having a thickness between 1-10 micrometers; and said electrolyte having a thickness between 5-10 micrometers.
Claim 10
Dependent Claim
33 words
Panel in accordance with claim 6 wherein said electrodes are one of the following: In 2 O 3 : SnO 2 ; In 2 O 3 ; Mo, Pt, Pd; Rh; Ti; ZnSe.
Claim 11
Dependent Claim
19 words
Panel in accordance with claim 6 said polymer layer being either polyaniline; polyaniline-3-sulfonic acid; polypyrol; polythiophene or poly-O-phenyl diamine.
Claim 12
Dependent Claim
34 words
Panel in accordance with claim 6 said electrolyte being one of the following: a polymeric sulfonic acid; a polymeric carbonic acid; buffered H 2 SO 4 ; HCl; buffered H 2 ClO 4 .
Claim 13
Dependent Claim
81 words
Panel in accordance with claim 6, said electrodes are one of the following: In 2 O 3 : SnO 2 ; In 2 O 3 ; In 2 O 3 ; Mo; Pt; Pd; Rh; Ti; ZnSe; said polymers are one of the following: polyaniline; polyaniline-3-sulfonic acid; polypyrol; polythiophene or poly-O-phenyl diamine; and said electrolyte is one of the following: a polymeric sulfonic acid; a polymeric carbonic acid; buffered H 2 SO 4 ; HCl; buffered H 2 ClO 4 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-18 | 1993-06-19 | 1993-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-18 | 1997-06-19 | 1997-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-18 | 2001-06-19 | 2001-12-19 | $7700.00 | Window Closed / Lapsed |