Title:
The headlight for vehicles
Document Type and Number:
Japanese Patent JP6131576
Kind Code:
B2
Abstract:
[Problem] It is important to suppress the occurrence of color bands due to lens spectral phenomena. [Solution] This invention is provided with a semiconductor light source (2) and a lens (3). The light emission center (O) of the semiconductor light source (2) is arranged at a reference focal point (F) of the lens (3), or in the proximity thereof. The incident surface (30) of the lens (3) is configured such that upper parts (3A, 3C, 3E) and the lower parts (3B, 3D, 3F) above and below the reference focal point (F) form pairs. Light distribution patterns (SPA, WPC, WPE) formed by the upper parts (3A, 3C, 3E) are shifted upwards relative to light distribution patterns (SPB, WPD, WPF) formed by the lower parts (3B, 3D, 3F). As a result, the present invention is capable of suppressing occurrence of color bands due to lens spectral phenomena.
Inventors:
Yasuhiro Okubo
Inoue Suka
Inoue Suka
Application Number:
JP2012254236A
Publication Date:
May 24, 2017
Filing Date:
November 20, 2012
Export Citation:
Assignee:
Ichikoh Co., Ltd.
International Classes:
F21S8/10
Domestic Patent References:
| JP2009181845A | ||||
| JP2010153180A | ||||
| JP3122902A | ||||
| JP2008262876A |
Attorney, Agent or Firm:
Hiroaki Sakai
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