Patent ID: 7722234
Filing Date: 2010-05-25
Classification: F21S

Abstract:
1. A vehicle headlight that irradiates a road ahead of a vehicle with a light distribution pattern including a first cutoff line substantially on a horizontal line of a screen on a driving lane side and a second cutoff line on an oncoming lane side, the vehicle headlight comprising: a light source that radiates a light; a light shielding member that shields a part of the light radiated from the light source and passes a remaining part of the light; and a reflection surface that reflects the light that passes the light shielding member ahead of the vehicle as the light distribution pattern, wherein the reflection surface includes each of the first reflection surface and the second reflection surface has a width in an up-and-down direction with respect to a horizontal line that passes the light source, a shape of the light shielding member is projected substantially to the horizontal line that passes the light source in the first reflection surface to form the first cutoff line on the driving lane side, the light shielding member includes a first edge that increases a light density around the first cutoff line on the driving lane side in the first light distribution pattern, the light shielding member has a dish-like shape with a circular cross section to cover the lower side of the light source, and the second cut off line is formed to be lowered in light density only by the second reflection surface.