Vehicle lamp
AssigneeKoito Manufacturing Co., Ltd.
InventorsKazuhisa Sakashita, Yuichi Yamamoto, Shingo Kato
Life of this patent
Estimating the term…
Abstract
Disclosed is a vehicle lamp including a projection lens, and a light source located behind the projection lens so that light emitted from the light source is irradiated forward through the projection lens. The projection lens includes an upright wall surface formed on a peripheral edge thereof, in which the upright wall surface has a greater longitudinal inclination angle than a front surface of the projection lens. A light control member is located behind the projection lens, in which the light control member is configured to suppress light incident on the projection lens from the light source, from being internally reflected by the upright wall surface.
Claims20
A vehicle lamp comprising:
- a projection lens;
- and
- a light source located behind the projection lens so that light emitted from the light source is irradiated forward through the projection lens,
- wherein the projection lens includes a sidewall surface which is smoothly curved to be a substantially flat surface having a longitudinally elongated shape when viewed from a front side thereof,
- a front edge of the sidewall surface is provided to linearly extend in a vertical direction when viewed from the front side of the projection lens,
- the sidewall surface has a greater inclination angle with reference to a plane perpendicular to an optical axis of the projection lens than a front surface of the projection lens when viewed in a horizontal cross section, and
- a light control member is provided on both left and right side portions of an inner circumferential surface of a lens holder supporting the projection lens to protrude closer to each other toward the optical axis behind the projection lens when viewed in a horizontal cross section such that light reflected in a direction away from the optical axis by a reflector is shielded by the light control member, thereby suppressing light incident toward the projection lens from the light source from being internally reflected by the sidewall surface toward the optical axis of the projection lens.
Dependencies are inferred from the claim text.