Display apparatus for vehicle with means to prevent solar heatin

Details Display apparatus for vehicle with means to prevent solar heatin Display apparatus for vehicle with means to prevent solar heatin

1986-05-27

1989-12-12

Orsino, Joseph A.

Communications: electrical

Aircraft alarm or indicating systems

Nonalarm flight indicator

340705, 350174, 350331T, 353 14, G09G 302

Patent

active

048863289

ABSTRACT:
A display apparatus for a vehicle of the type wherein a display image of a display device located near a focus of an optical system is projected on a front glass of the vehicle so that a virtual image of the display image may be focused at a position forwardly of the front glass. In the display apparatus, when external light entering the optical system has an intensity higher than a predetermined level, a light intercepting means prevents the external light from being received by the display device, thereby preventing thermal destruction of the display device which may possibly be caused by heat given to the display device by intense external light such as the sunlight which is condensed by the optical system.

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