Vehicle headlamp

Details Vehicle headlamp Vehicle headlamp

2006-01-31

2006-01-31

Sember, Thomas M. (Department: 2875)

Illumination

Supported by vehicle structure

Light modifier

C362S516000, C362S518000

Reexamination Certificate

active

06991353

ABSTRACT:
In a conventional vehicle headlamp, when improvement in the visibility at the time of turning the vehicle is attempted by turning the light distribution characteristic, if a part of the light is turned, the quantity of light becomes insufficient as a whole, and if the whole light distribution is turned, the visibility straight ahead becomes insufficient.According to the present invention, there is provided a vehicle headlamp1comprising: one light source2; a first light distribution-forming reflecting surface3forming a light distribution shape for a diagonally rising portion, and consisting of double reflecting surfaces, that is, a primary reflecting surface which is an elliptic type, and a secondary reflecting surface which is a parabolic type; a second light distribution-forming reflecting surface4forming a light distribution shape in a wide range below the horizontal line, and consisting of double reflecting surfaces, that is, a primary reflecting surface which is an elliptic type, and a secondary reflecting surface which is a parabolic type; and a third light distribution-forming reflecting surface5forming a light distribution shape in a narrow range below the horizontal line, wherein at least one of the first light distribution-forming reflecting surface to the third light distribution-forming reflecting surface is rotatable in the horizontal direction. As a result, the turning direction and the direction straight ahead can be illuminated with sufficient quantity of light, to thereby solve the problems.

REFERENCES:
patent: 6419380 (2002-07-01), Oyama et al.
patent: 6454448 (2002-09-01), Taniuchi et al.
patent: 6471383 (2002-10-01), Oyama et al.
patent: 6575609 (2003-06-01), Taniuchi et al.
patent: 2004/0022067 (2004-02-01), Taniuchi
patent: 2002-234380 (2002-08-01), None

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