Illumination – Vehicle steering mechanism or element moves pivoted lamp or... – Tie rod element controlled
Patent
1990-09-04
1991-07-30
Husar, Stephen F.
Illumination
Vehicle steering mechanism or element moves pivoted lamp or...
Tie rod element controlled
362276, 362293, 315159, B60Q 104
Patent
active
050364375
ABSTRACT:
A vehicle lamp control sensor for switching a lamp on or off depending on ambient levels. The device employs a silicon photodetector in combination with a filter chosen to give the detector a response curve that peaks at about 550 nanometers. This gives the control sensor the same proximate spectral response as the human eye. The photo detector transmits an electrical signal in response to the ambient light. The electrical signal is sensed by a lamp switching circuit to switch the vehicle lamp at predetermined light levels. The vehicle lamp control sensor will thus respond to changes in the ambient light levels in a manner which matches the perceived light levels of a human observer.
REFERENCES:
patent: 1981985 (1934-11-01), Braselton
patent: 3673421 (1972-06-01), Hicks et al.
patent: 3706005 (1972-12-01), Carlson
Husar Stephen F.
Lectron Products, Inc.
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