Dimmable rear view mirror, particularly for automotive vehicles

Details Dimmable rear view mirror, particularly for automotive vehicles Dimmable rear view mirror, particularly for automotive vehicles

1980-08-07

1981-11-10

Corbin, John K.

350337, G02B 1700, B60R 104

Patent

active

042994446

ABSTRACT:
A dimmable rearview mirror, particularly for motor vehicles comprising a reflective surface, two polarization filters spaced apart from each other and arranged in front of the reflective surface as seen in the direction of observation. A liquid crystal cell is disposed between the two polarization filters and includes cell glasses enclosing a liquid crystal substance. The cell glasses are provided with electrodes, the electrodes surfacewise covering essentially the entire surface of the reflective surface. A switchable and/or variable source of voltage is connected to the electrodes for adjusting the degree of reflection of the rearview mirror.

REFERENCES:
patent: 1908767 (1933-05-01), Hodny
patent: 2466625 (1949-04-01), Ulmer
patent: 3544195 (1970-12-01), Cameron
patent: 3862798 (1975-01-01), Hopkins
patent: 3924932 (1975-12-01), Yamamoto
patent: 4200361 (1980-04-01), Malvano et al.

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