Viewing angle measuring device for automotive vehicles

Details Viewing angle measuring device for automotive vehicles Viewing angle measuring device for automotive vehicles

1980-06-05

1982-09-21

Martin, Jr., William D.

Geometrical instruments

Straight-line light ray type

Structurally installed

33227, 33281, G01B 1100

Patent

active

043499643

ABSTRACT:
A viewing angle measuring device for automotive vehicles. The measuring device includes an elliptical template representing a so-called visual ellipse. The template is arranged in the vehicle in a prescribed position with respect to a driver's seat regarding a center position and an axial inclination. A measuring beam projector may be guided with its optical axis and/or with a measuring beam tangentially along a governing curve of the elliptical template. A goniometer, continuously indicating the viewing angle, is connected to the measuring beam projector to determine the beam direction with respect to a reference plane as a measure of the viewing angle.

REFERENCES:
patent: 2158310 (1939-05-01), Smith et al.
patent: 3051047 (1962-08-01), Fieux
patent: 3469919 (1969-09-01), Zellner

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