Apparatus for controlling light projection angle of head lamp of

Details Apparatus for controlling light projection angle of head lamp of Apparatus for controlling light projection angle of head lamp of

1979-08-31

1981-10-06

Miller, Edward A.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Through fluid pressure control

307 10LS, 362 66, 362 71, 362271, 362272, 362 44, 362428, B60Q 110, F21V 2130, B60Q 106

Patent

active

042938937

ABSTRACT:
An apparatus for controlling angular position of optical axis of a head lamp assembly for a motor vehicle. An actuator is supplied selectively with the atmospheric pressure and a negative pressure available from an intake conduit of an internal combustion engine thereby to produce corresponding mechanical displacements. A detector for detecting the angular position of the optical axis of the head lamp assembly responds to the mechanical displacements of the actuator to change-over successively the contact states of a plurality of paired electric contacts. A command unit for setting the angular position of the optical axis of the head lamp assembly is provided which includes a plurality of paired electric contacts connected in one-to-one correspondence to the paired contacts of the optical axis position detector. A signal for setting the optical axis of the head lamp assembly is produced in dependence on the contact states of the optical axis position detector.

REFERENCES:
patent: 3903984 (1975-09-01), Andres et al.
patent: 3955173 (1976-05-01), Martin
patent: 4194235 (1980-03-01), Heinlein

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