Apparatus for automatically adjusting direction of light...

Details Apparatus for automatically adjusting direction of light... Apparatus for automatically adjusting direction of light...

2006-08-08

2006-08-08

Cariaso, Alan (Department: 2875)

Illumination

Supported by vehicle structure

Condition responsive

C362S467000, C701S049000

Reexamination Certificate

active

07086763

ABSTRACT:
The apparatus for adjusting a direction of a light axis of a vehicle headlight includes a vehicle height sensor, and an inclination calculating unit for calculating, on the basis of an output of the vehicle height sensor, inclination of the direction of the light axis of the vehicle headlight to a horizontal plane by using an approximating curve. The approximating curve is constituted by three straight line segments lying in first, second and third regions respectively. These three straight line segments which are jointed to one another have different slopes. The first region corresponds to a load condition where all seats of the vehicle are occupied and the vehicle is loaded with 30 to 50% of its maximum loading capacity, the second region corresponds to a load condition where all the seats of the vehicle are occupied and the vehicle is loaded with 90% or more of its maximum loading capacity. The third region is a region interposed between the first region and the second region.

REFERENCES:
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patent: 6572248 (2003-06-01), Okuchi et al.
patent: 2002/0003473 (2002-01-01), Makita et al.
patent: 0965487 (2001-10-01), None
patent: 2000-142213 (2000-05-01), None
patent: 2002-19517 (2002-01-01), None
patent: 2002-234383 (2002-08-01), None

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