車両用灯具ユニット - Koito Manufacturing Co., Ltd.

Title:

車両用灯具ユニット

Document Type and Number:

Japanese Patent JP4786420

Kind Code:

B2

Abstract:

The reflection surface of a reflector is formed by a parabolic cylindrical plane extending in the horizontal direction orthogonal to an optical axis. A light emitting element is configured to have five light emitting chips arranged in a T-shape and these light emitting chips are lighted in two lighting modes. In the first lighting mode, a special light emitting chip and a pair of the left and right side special light emitting chips which front end edges are aligned on the focal line of the parabolic cylindrical plane are lighted simultaneously, whereby a light distribution pattern having a narrow vertical width and a prolong shape is formed. In the second lighting mode, a special light emitting chip located at the center portion and two general light emitting chips disposed in series on the backward side thereof are lighted simultaneously, whereby a light distribution pattern having a large vertical width and a prolong shape is formed.

More Like This:

JP4697897	Vehicle lighting
JP4362817	Vehicle lighting
JP5704479	Vehicle headlights with LED light emitting modules that generate primary and secondary light distribution

Inventors:

Takayuki Yagi

Application Number:

JP2006151196A

Publication Date:

October 05, 2011

Filing Date:

May 31, 2006

Export Citation:

Click for automatic bibliography generation Help