Automatic rearview mirror system for automotive vehicles
US4917477A · kind A · utility
503Cited by
4References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1987 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Apr 6, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/153
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved automatic rearview mirror system which is particularly adapted for use with automotive vehicles and which may be utilized as a fully integrated inside/outside rearview mirror system or as an inside or an outside rearview mirror system. The system includes a variable reflectance member the reflectivity of which varies as a function of an electrical signal applied thereto, and the system also includes improved means operable to apply an electrical signal to the variable reflectance member to vary the reflectivity of such member as a function of sensed ambient light and sensed glare causing light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.