Device for testing the beam-setting of motor vehicle headlights

Details Device for testing the beam-setting of motor vehicle headlights Device for testing the beam-setting of motor vehicle headlights

1985-02-15

1986-12-30

Rosenberger, R. A.

Optics: measuring and testing

Lamp beam direction or pattern

356123, G01J 100

Patent

active

046325450

ABSTRACT:
A test device for setting motor-vehicle headlight beams is described, which essentially consists of a base plate (1) and the two open-up parts, namely the lens holder (2) and the test surface (3). The lens holder contains an aspheric lens (4) of which the optical axis (5) is parallel to the rest surface (6) of the base plate (1) and simultaneously perpendicular to the test surface when the device is in the opened-up, operational position. The lens is of such height and so corrected that the light of headlights mounted low, normally or high is passed without headlight elevation adjustment and is imaged on the test surface located approximately in the lens focus, and in that the test result is entirely independent of the particular headlight elevation.

REFERENCES:
patent: 2167803 (1939-08-01), Graham et al.
patent: 2552116 (1951-07-01), Rodeghiero
patent: 3843262 (1974-10-01), Cazarer et al.

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