| 主权项 |
1. A vehicle lamp fitting comprising:
a semiconductor light source including a reference focal point at or in a vicinity of a center of at least one light-emitting surface, and upon receiving electrical current, the semiconductor light source emits a first portion of light and a second portion of light from the at least one light-emitting surface; and a lens including at least a first surface of incidence and a second surface of incidence facing the at least one light-emitting surface, and at least one emission surface opposite the first and second surfaces of incidence; wherein the second surface of incidence lies further toward the semiconductor light source than an extended first surface of incidence, defined as a location of the first surface of incidence if the first surface of incidence was to be extended beyond a starting point of the second surface of incidence; wherein the first portion of light is emitted at or in a vicinity of the reference focal point from the at least one light-emitting surface, enters the first surface of incidence of the lens directly from the at least one light-emitting surface, and is shaped or redirected as it passes through the lens as first incident light, the first incident light exiting the lens via the at least one emission surface as a main light distribution pattern; wherein the second portion of light is emitted at or in a vicinity of the reference focal point from the at least one light-emitting surface, enters the second surface of incidence of the lens directly from the at least one light-emitting surface, and is shaped or redirected as it passes through the lens as second incident light, the second incident light exiting the lens via the at least one emission surface as an overhead sign light distribution pattern; and wherein a shape of the first surface of incidence and a shape of the second surface of incidence are each selected from a group consisting of: a free-form surface, a compound quadratic surface, and an aspherical surface. |
