Title:
車両用灯具
Document Type and Number:
Japanese Patent JP6659456
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a vehicular lighting fixture which is formed by mutually, partially and overlappingly connecting respective light distribution patterns of at least a main light distribution pattern and an overhead sign light distribution pattern.SOLUTION: A biconvex lens is arranged. In the biconvex lens, a first reflection surface 11 formed from a rotary elliptical system reflection surface having two focal points of a focal point F1 and a focal point F2 on a substantially center axis Z extending in a vehicle longitudinal direction is arranged, and a second reflection surface 21 formed by a rotary elliptical system reflection surface having a focal point F3 to be one focal point on a substantially extension line going through a fourth reflection surface 41 formed from a plane refection surface inclined frontward-obliquely and downwardly from the position of the focal point F2 is arranged in the vicinity of the front end of the first reflection surface 11 with the focal point F1 formed as the other focal point. The biconvex lens has an imaginary focal point F3' of the focal point F3 in the vicinity of a lower end part of a light emission surface 62 of a front surface with the focal point F2 formed as a focal point in front of the first reflection surface 11 and the fourth reflection surface 41. Then, a light source is arranged at the position of the focal point F1.SELECTED DRAWING: Figure 3
Inventors:
Shinya Kogure
Application Number:
JP2016098909A
Publication Date:
March 04, 2020
Filing Date:
May 17, 2016
Export Citation:
Assignee:
Stanley Electric Co., Ltd.
International Classes:
F21S41/33; F21S41/147; F21S41/36; F21S41/40
Domestic Patent References:
| JP2006344521A | ||||
| JP2011119184A | ||||
| JP2012226860A | ||||
| JP2007335301A | ||||
| JP2010108727A |
Attorney, Agent or Firm:
Teruo Akimoto
Daisuke Yoshizawa
Daisuke Yoshizawa