Electrochromic rearview mirror incorporating a third surface metal reflector
US6064508A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrochromic variable reflectance mirror for a vehicle includes a reflector/electrode on the third surface of the mirror. This reflector/electrode forms an integral electrode in contact with the electrochromic media, and may be a single layer of a highly reflective material or may comprise a series of coatings. When a series of coatings is used for the reflector/electrode, there should be a base coating which bonds to the glass surface and resists any adverse interaction, e.g., corrosive action, with the constituents comprising the electrochromic media, an optional intermediate layer (or layers) which bonds well to the base coating and resists any adverse interaction with the electrochromic media, and at least one highly reflective layer which directly contacts the electrochromic media and which is chosen primarily for its high reflectance, stable behavior as an electrode, resistance to adverse interaction with the materials of the electrochromic media, resistance to atmospheric corrosion, resistance to electrical contact corrosion, the ability to adhere to the base or intermediate layer(s) (if present) and to the epoxy seal, and ease of cleaning. If a base layer is deposited …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.