Photoelectric touch panel

Details Photoelectric touch panel Photoelectric touch panel

1987-12-30

1989-09-19

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

341 31, 250221, G09G 300

Patent

active

048685500

ABSTRACT:
A photoelectric touch panel comprising arrays of equally spaced light emitting elements and photosensitive elements disposed in a frame configuration on the circumference of a CRT display screen in which a matrix of infrared beams is formed in front of the screen. The photoelectric touch panel has a light shielding plate formed into a comblike shape disposed such that each comb tooth thereof is interposed between said photosensitive elements.

REFERENCES:
patent: 3234512 (1966-02-01), Burkhart
patent: 3478220 (1969-11-01), Milroy
patent: 3764813 (1973-10-01), Clement et al.
patent: 3860754 (1975-01-01), Johnson et al.
patent: 4459476 (1984-07-01), Weissmueller et al.

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