Displaying apparatus for vehicle

Details Displaying apparatus for vehicle Displaying apparatus for vehicle

1993-01-25

1995-03-14

Weldon, Ulysses

Computer graphics processing and selective visual display system

Image superposition by optical means

359630, G09G 302

Patent

active

053980395

ABSTRACT:
The present invention is concerned with a displaying apparatus for a vehicle which assures that a displayed image for displaying informations on the present running state of the vehicle such as a running speed or the like in the form of a virtual image by reflecting the displayed image on the displaying unit to an eye range on the driver's seat with the aid of a first reflective plate, and its object resides in providing a displaying apparatus of the foregoing type which assures that quality of the displayed image can be improved with inexpensive construction, and moreover, visual recognizability of the displaying apparatus can be improved (with improved optical contrast). According to the present invention, a surface glass disposed on a displaying unit adapted to allow displaying light beam from a second reflective plate to permeate through a first reflective plate is inclined in such a manner that a virtual image (ghost) identical with a displayed image built by the first reflective plate and the second reflective plate is located outside of a visual recognizable area.

REFERENCES:
patent: 2750833 (1956-06-01), Gross
patent: 3620592 (1971-11-01), Freeman
patent: 4986631 (1991-01-01), Aoki et al.
patent: 5181012 (1993-01-01), Fucuya et al.
patent: 5229754 (1993-07-01), Aoki et al.
patent: 5231379 (1993-07-01), Wood et al.

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