Head-up display for automobile

Details Head-up display for automobile Head-up display for automobile

1985-06-24

1988-04-26

Caldwell, Sr., John W.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

350174, 353 14, G02B 2710

Patent

active

047407808

ABSTRACT:
A head-up display for use in an automotive or other vehicle having limited space. The optical path from display symbol generator to a collimating lens is folded to fit in a relatively compact housing. Also shown is the use of the automobile windshield as a combiner glass for the display. Corrective lenses, and in particular crossed linear fresnel lenses, are used to correct for the astigmatism introduced by the geometry of the windshield. This provides a combination of optical powers for the display lens and the windshield which has the resultant effect of projecting an image from the image source to the driver's eye. The source is a high light output array of light-emitting diodes. A microprocessor based controller for detecting the status of inputs from the automobile is shown. Data is periodically loaded into a random access memory dedicated to controlling the display. When data is not being loaded, a separate address and timing generator is used to cause data from this memory to be displayed in a free-running mode.

REFERENCES:
patent: 2178637 (1939-11-01), Link
patent: 3230819 (1966-01-01), Noxon
patent: 3280625 (1966-10-01), Birmingham
patent: 3529283 (1970-09-01), Emerson
patent: 3824535 (1974-07-01), Rover
patent: 3848974 (1974-11-01), Hosking et al.
patent: 3887273 (1975-06-01), Griffiths
patent: 3932861 (1976-01-01), Bull
patent: 3936148 (1976-02-01), Ellis
patent: 4026641 (1977-05-01), Bosserman et al.
patent: 4190832 (1980-02-01), Mohler
patent: 4350411 (1982-09-01), Rogers
Design News, Sep. 3, 1984, pp. 86-88, "Moving Along with Mazda", by D. C. Brookman.
Omni Magazine, 1985, p. 42, "Holograms for your Car", by T. Onosko.
USA Today, 8/30/84, "Computers Fuel Autos' Rebirth", by J. Hillkirk.
Road Research Labortory, Mar. 1971, "Station Keeping Indicator".
Road Research Laboratory, Aug. 1968, "Head-Up-Display Speedometer".
Transport and Road Research Laboratory, May, 1975, "The Head-Up Display Speedometer".
Ergonomics, vol. 18, No. 1, pp. 89-100, 1975, "Control of Drivers' Speed . . . ", by K. S. Rutley.

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