Vehicle roof with light transmissive cover

Details Vehicle roof with light transmissive cover Vehicle roof with light transmissive cover

1993-09-29

1995-04-11

Pedder, Dennis H.

Land vehicles: bodies and tops

Tops

Roof structure

296211, 49 38, B60J 700

Patent

active

054051843

ABSTRACT:
The invention relates to a vehicle roof having a light-transmissive cover, which has at least one outside panel, and having a device for varying the light-transmissibility of the cover. A light-transmissive cover of flat construction and easy actuation, whose light transmissibility can be steplessly regulated over a wide range, is achieved by integrating a device of darkening elements into a transparent cover, which is of extremely flat construction, is lightweight, mechanically easy to activate, and has a short regulating distance. Especially advantageous is a device whose darkening elements are formed by two superposed polarization films that are movable relative to each other. Such a configuration facilitates a particularly flat construction, and the light transmissibility of the cover is practically steplessly adjustable in a range of 0%-100%.

REFERENCES:
patent: 1996426 (1935-04-01), Levan
patent: 2078002 (1937-04-01), Keil et al.
patent: 2423322 (1947-07-01), Hurley, Jr.
patent: 2549167 (1951-04-01), Brubaker
patent: 2635523 (1953-04-01), Hunter
patent: 4505069 (1985-03-01), Freeman
patent: 4671564 (1987-06-01), Sumida et al.

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