On-vehicle head up display device with double images angularly s

Details On-vehicle head up display device with double images angularly s On-vehicle head up display device with double images angularly s

1988-06-02

1990-01-09

Henry, Jon W.

G02B 2710, G02B 1708

Patent

active

048923869

ABSTRACT:
In an on-vehicle head up display device employing a catopric system for a windshield glass of an automobile to project a display image onto an inner surface of the windshield glass, an optical system for letting a virtual image of the display image of a display means enter the windshield glass is adapted to make an angle formed by light beams of the virtual image entering the windshield glass less than a monocular resolving power. Further, an optical means for correcting parallax of the light beams of the virtual image is provided between the optical system and the windshield glass. Thus, a double image formation and binocular parallax may be eliminated.

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patent: 4582389 (1986-04-01), Wood et al.
patent: 4613200 (1986-09-01), Hartman
patent: 4632508 (1986-12-01), Connelly

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