Polarized windshield indicia reflection display system

Details Polarized windshield indicia reflection display system Polarized windshield indicia reflection display system

1978-04-18

1980-02-26

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340 52R, 340 97, 340107, 350337, G09F 932

Patent

active

041908325

ABSTRACT:
A windshield indicia display system utilizing a liquid crystal display in conjunction with a polarizing filter element and semi-transparent reflective tape element to form a unique optical system capable of projecting in digital format a virtual image into the visual field of the operator. This virtual image, focused at infinity, utilizes the unmodified windshield as a remote polarizer for this unique optical system. Electronic means are provided to convert vehicle speed or other indicia into a decimal format capable of digital display by the system.

REFERENCES:
patent: T936004 (1975-07-01), Willis
patent: 3317906 (1967-05-01), Baldridge
patent: 3665392 (1972-05-01), Annas
patent: 3911426 (1975-10-01), Mouton et al.

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