Patent ID: 6062714
Filing Date: 2000-05-16
Classification: F21S

Abstract:
A vehicle headlight comprising:a discharge bulb, anda reflector having an optical axis and a reflecting surface for forwardly reflecting an output light of the discharge bulb, and for forming a light-distribution subpattern having an oblique cut line and a horizontal cut line, wherein said reflecting surface includes:a first reflecting surface region disposed on a substantially upper half of said reflecting surface with respect to the optical axis of the reflector, said first reflecting surface region is designed so as to form the light-distribution subpattern with light reflected from the first reflecting surface region, anda second reflecting surface region located below the optical axis of the reflector, said second reflecting surface region reflects downwardly, in a deflection mode, light output from the discharge bulb, and reflects horizontally, in a diffusion mode, light output from the discharge bulb, so that light reflected from the second reflecting surface region forms, in a part of the light-distribution subpattern near a vehicle, a wide diffusion-distribution pattern which has a horizontal-diffusion angle larger than a horizontal-diffusion angle of the light-distribution subpattern.