Adjustable tint window with electrochromic conductive polymer
US4893908A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Jun 27, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B3/6722
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method is provided for decreasing radiative heat transfer and adjustably limiting visible light and near infrared radiation transfer and glare through a window. The method comprises the steps of: (a) mounting within a frame of the window a plurality of spaced window panes, a first and second of the panes having opposing faces; (b) assembling between the opposing faces a conductive polymer cell, the cell having a first wall composed of a transparent conductive layer affixed to the first pane and having deposited thereupon an electroactive electro-optically responsive conductive polymer, and a second wall comprised of a transparent conductive layer coated on the second pane, the layer being optionally coated with a second electro-optically responsive polymer, the first and second walls delimiting a cavity containing an ion-conducting electrolyte which contacts opposing surfaces of the first and second walls, and (c) applying a potential between the first and second walls to provide a selected light transmittance upon passage of current therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.