Vehicle light
AssigneeStanley Electric Co., Ltd.
InventorHiroo Oyama
Life of this patent
Estimating the term…
Abstract
A vehicle light can include a projector type unit and an ellipse-parabola combined unit that surrounds a light source. Part of the light from the light source is directed toward a projector lens by part of an ellipse group reflecting portion of the projector type unit. The remainder of the light is directed toward a parabolic group reflecting portion of the ellipse-parabola combined unit by the ellipse group reflecting portion of the ellipse-parabola combined unit via openings. This parabolic group reflecting portion then directs the light to its illumination direction. This can improve light utilization efficiency, and the entire front face of the vehicle light can be lit without deteriorating from the vehicle light's light distribution.
Claims8
A vehicle light comprising:
- a light source;
- a projector type unit including,
- a projector ellipse group reflecting portion having a first focus located substantially at the light source, and a second focus,
- a projection lens having a focus located substantially at the second focus of the projector ellipse group reflecting portion, and
- a shielding plate configured to shield light from the light source to form a low-beam light distribution,
- the projector type unit configured to direct light from the light source to the projection lens to emit light therefrom;
- and
- an ellipse-parabola combined unit configured to emit light from the light source, including,
- at least one light-collecting ellipse group reflecting portion and a projector parabolic group reflecting portion, the light-collecting ellipse group reflecting portion having a first focus located substantially at the light source and a second focus, the projector parabolic group reflecting portion having a focus located substantially at the second focus of the light-collecting ellipse group reflecting portion, wherein a light outlet opening is provided in the light-collecting ellipse group reflecting portion such that light reflected by the light-collecting ellipse group reflecting portion passes through the outlet opening and toward the projector parabolic group reflecting portion, and
- a projection mirror holder configured to allow the projector parabolic group reflecting portion to direct the light from the light outlet opening in a direction of illumination, wherein
- the projector ellipse group reflecting portion and the light-collecting ellipse group reflecting portion constitute an internal mirror assembly enclosingly surrounding the light source.
Dependencies are inferred from the claim text.