Title:
車両用灯具
Document Type and Number:
Japanese Patent JP6744196
Kind Code:
B2
Abstract:
A vehicle lighting fixture (10) utilizing a light guide plate (20) with a circular arc shape and capable of improving the visual recognizability of the light guide plate (20) when seen from its front oblique direction is provided. The vehicle lighting fixture (10) includes: a light guide plate (20) having a first end portion (20a), a second end portion (20b), a front light emission surface (20c) extending between the first end portion (20a) and the second end portion (20b) in a circular arc shape, a rear surface (20d) opposite to the front light emission surface (20c), an inner peripheral surface 20e, an outer peripheral surface 20f, a plurality of lens cut surfaces (20c1) formed in the front light emission surface (20c) to extend in a circular arc shape, the lens cut surfaces (20c1) being recessed rearward and formed in a concentric manner; and a structural body (20d1) provided to the rear surface (20d) of the light guide plate (20), the structural body (20d1) being configured to diffuse and reflect light guided within the light guide plate (20) in order for the light to exit through the front light emission surface (20c). The light guide plate (20) is formed in a substantially circular truncated conical shape where a part of the light guide plate (20) on an outer peripheral side is located rearward more than a part of the light guide plate (20) on an inner peripheral side is.
Inventors:
Kazuya Furubayashi
Application Number:
JP2016212470A
Publication Date:
August 19, 2020
Filing Date:
October 31, 2016
Export Citation:
Assignee:
Stanley Electric Co., Ltd.
International Classes:
F21S43/237; F21S43/239; F21V8/00
Domestic Patent References:
| JP2003297108A | ||||
| JP2016177976A | ||||
| JP200891262A | ||||
| JP201511931A |
Foreign References:
| US6641295 | ||||
| EP3076069A2 |
Attorney, Agent or Firm:
Kenji Doi
Hayashi Tsunetoku
Hayashi Tsunetoku