Headlight for vehicle

U.S. Patent Number: 5730519

Abstract: In order to prevent a driver from feeling strange when he looks at a boundary of illumination between a hot illumination zone and flat illumination zone, a light-grading optical member is provided. A headlight for a vehicle includes a fiberoptic cable and a lamp member for forming incident light beams into a desired illumination profile to illuminate portions in front of the vehicle. The lamp member is composed of a light conducting member to define the profile of the illumination by introducing the light beams from the fiberoptic cable, a first lens member for forming the hot illumination zone and a second lens member for forming the flat illumination zone. The optical member or means for refracting a portion of the light beams is formed on a periphery of the first lens member or on a periphery of the light conducting member, whereby a difference in brightness between the hot and flat illumination zones is reduced.

Inventors: Okuchi; Hiroaki (Anjo, JP), Kato; Hideyuki (Nishio, JP)

Assignee: Nippondenso Co., Ltd. (Kariya, JP)

Application Number: 08/551,313

Issued: 1998-03-24

Expired: 2006-03-24

Classes: 362/559 ; 362/332; 362/507; 385/33

Field of search: 385/32,33,901 362/32,61,327,332,268,331

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