Liquid crystal mirror for use as a rear-view mirror for vehicles
US4200361A · kind A · utility
361Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1978 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Jan 17, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R1/088
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rear-view mirror for motor vehicles incorporates a liquid crystal film sandwiched between front and rear transparent electrode surfaces, the rear electrode surface being in the form of a lattice or net having a number of clear areas through which light passes unattenuated when the cell is activated to reduce the reflection of light by the mirror in response to the detection of headlight glare by a photocell mounted on the mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.