Patent ID: 8562191
Filing Date: 2013-10-22
Classification: F21S

Abstract:
1. A vehicle light comprising: a light emitting element configured to act as a light source and having an optical axis; and a light guide lens configured to guide light beams from the light emitting element, so as to project light in an illumination direction of the vehicle light, the light guide lens including a first incidence surface, a second incidence surface, a first protruding light exiting surface, a plurality of first reflection surfaces, and a plurality of second light exiting surfaces, wherein: the first incidence surface is configured to receive light beams emitted from the light emitting element at an angle of from 0 degrees to θ1 degrees (where 0<θ1) with respect to the optical axis; the second incidence surface is configured to receive light beams emitted from the light emitting element at an angle of from θ4 degrees to θ5 degrees (where θ1<θ4<θ5) with respect to the optical axis; the first protruding light exiting surface is configured to allow the light beams having passed through the first incidence surface to exit the light guide lens through the first protruding light exiting surface in the illumination direction of the vehicle light; the plurality of first reflection surfaces are configured to reflect the light beams having passed through the second incidence surface so that the reflected light beams are substantially parallel with the optical axis; the plurality of second light exiting surfaces are each configured to be one of a ring-shaped surface and an arc-shaped surface, and configured to allow the reflected light beams from the plurality of first reflection surfaces to exit in the illumination direction of the vehicle light; the plurality of first reflection surfaces are disposed in a stepped manner, and the plurality of second light exiting surfaces are disposed in a stepped manner; light beams emitted from the light emitting element at an angle of from θ4 degrees to θ4a degrees (where θ4<θ4a<θ5) with respect to the optical axis of the light emitting element impinge on the second incidence surface, and then the light beams are reflected by the farthest first reflection surface among the plurality of first reflection surfaces with respect to the optical axis, and exit through the farthest ring-shaped or arc-shaped second light exiting surface among the plurality of second light exiting surfaces with respect to the optical axis; light beams emitted from the light emitting element at an angle of from θ4c degrees to θ5 degrees (where θ4a<θ4c<θ5) with respect to the optical axis of the light emitting element impinge on the second incidence surface, and then the light beams are reflected by the first reflection surface nearest to the optical axis among the plurality of first reflection surfaces, and exit through the nearest ring-shaped or arc-shaped second light exiting surface among the plurality of second light exiting surfaces with respect to the optical axis; the vehicle light further comprises the vehicle light is configured such that a curvature of the first light exiting surface in a plane including the direction between a third side and a fourth side and including the optical axis is made smaller than a curvature of the first light exiting surface in a plane including the direction between the first side and the second side and including the optical axis so that: the vehicle light projects the light beams emitted from the light emitting element at an angle of from θ2 degrees to θ3 degrees with respect to the optical axis of the light emitting element so that the ring-shaped or arc-shaped third light exiting surface nearest to the optical axis among the plurality of ring-shaped or arc-shaped second and third light exiting surfaces is the brightest; and the vehicle light projects the light beams emitted from the light emitting element at an angle of from θ4 degrees to θ4a degrees with respect to the optical axis of the light emitting element so that the ring-shaped or arc-shaped second light exiting surface farthest from the optical axis among the plurality of ring-shaped or arc-shaped second and third light exiting surfaces is the second brightest.