Method for electrically securing an electrical power supply of a system with variable optical properties
US8336189B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jul 25, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49117
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making an electrical power supply of an electrically controllable system having variable optical properties, when fitted near water, electrically safe, the electrically controllable system comprising a carrier substrate that bears an electroactive element placed between first and second electrodes supplied with a periodic voltage U(t) having a given maximum RMS value U0 at a given low supply frequency, the method including limiting the touch potential at an input or output terminal of the electrically controllable system to a maximum value of 50 V or less, the touch potential being defined as the potential experienced by the human body in case of contact with the input or output terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.