Light guide with multi-directional optics
AssigneeNorth American Lighting, Inc.
InventorMatthew Hancak
Life of this patent
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Abstract
A light guide is provided having an elongate body extending in a longitudinal direction having a light transmission portion with a forward light exit surface and a reflective track extending opposite the light exit surface. A plurality of reflective elements are formed along the reflective track and spaced apart in the longitudinal direction. Each reflective element has a center segment and a pair of edge segments each oriented at a spread angle from the center segment toward the light transmission portion, thereby increasing a spread of light output in a horizontal direction from the light transmission portion.
Claims20
A vehicle lamp, comprising:
- a lamp housing having an opening;
- a light-transmissive outer cover that covers the opening in the lamp housing and defines a lamp chamber therebetween;
- a light guide arranged in the lamp chamber having an elongate body extending in a longitudinal direction, the elongate body having a light transmission portion and a reflective track protruding from the light transmission portion;
- and
- a light source positioned adjacent at least one end of the light guide,
- wherein the light guide has a plurality of reflective elements formed along the reflective track and spaced apart in the longitudinal direction, each reflective element having a center segment and a pair of edge segments each oriented at a spread angle from the center segment toward the light transmission portion, thereby increasing a spread of light output in a direction generally perpendicular to the longitudinal direction.
A light guide comprising:
- an elongate body extending in a longitudinal direction and having a cross section transverse to the longitudinal direction having a light transmission portion being generally circular and a reflective track protruding from the light transmission portion;
- and
- a plurality of reflective elements formed along the reflective track and spaced apart in the longitudinal direction, each reflective element having a center segment and a pair of edge segments, each one of the edge segments positioned on opposite sides of the center segment and increasing in depth as the edge segment extends away from the center segment.
A light guide comprising:
- an elongate body extending in a longitudinal direction having a light transmission portion with a forward light exit surface and a reflective track extending from the light transmission portion opposite the light exit surface;
- and
- a plurality of reflective elements formed along the reflective track and spaced apart in the longitudinal direction, each reflective element having a center segment and a pair of edge segments each oriented at a spread angle from the center segment toward the light transmission portion, thereby increasing a spread of light output in a horizontal direction from the light transmission portion.
Dependencies are inferred from the claim text.