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Light guide for vehicle lamp assembly

A technology of light guide and assembly, applied in the direction of light guide of lighting system, light guide, semiconductor device of light-emitting element, etc., can solve the problem of incompatibility, and achieve the effect of reducing energy consumption, releasing packaging space and reducing cost

Inactive Publication Date: 2010-09-01
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the light emitted by such LEDs is often dispersed into an uncontrolled light spread distribution, which is not suitable for certain light configurations, such as daytime running lights and turn signals

Method used

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  • Light guide for vehicle lamp assembly
  • Light guide for vehicle lamp assembly
  • Light guide for vehicle lamp assembly

Examples

Experimental program
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Embodiment Construction

[0030] Referring to the drawings, wherein like reference numerals refer to like components throughout. figure 1 is a perspective view of a representative motor vehicle, generally designated 10, with which the present invention may be incorporated and practiced. It should be easy to understand that, figure 1 is just one exemplary application that the present invention may utilize. Likewise, the invention is by no means limited to figure 1 Vehicle configuration shown. For example, although vehicle 10 is in figure 1 shown as a standard passenger car, but the invention can be incorporated into any vehicle platform, such as light trucks, sport utility vehicles, heavy duty vehicles, minivans, commercial vehicles, buses, ships, trains and airplanes etc., but of course not limited to these. Finally, the drawings herein are not to scale and are for illustrative purposes only. Accordingly, the individual and relative sizes and orientations shown in the drawings should not be consi...

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PUM

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Abstract

The invention relates to a light guide for a vehicle lamp assembly. A light guide and various vehicular lamp assemblies using the same are presented herein. In one embodiment, the lamp assembly includes a light source, such as an LED module. A light coupler is operable to receive light from the light source, and distribute the light in a first direction. The light guide includes an elongated, curvilinear body with first and second longitudinal end faces, and opposing light-emitting and light-guiding surfaces extending between the two end faces on a respective side of the body. The first end face communicates with the light coupler to receive light therefrom. The light guide body transmits light generated by the light source along the longitudinal expanse thereof. The light-guiding surfaceincludes an array of longitudinally-spaced optical grooves configured to refract light generated by the light source in a second direction. The depth of preselected optical grooves is varied along the length of the light guide.

Description

technical field [0001] The present invention relates generally to light assemblies for automotive vehicles, and more particularly to light guides for vehicle light assemblies. Background technique [0002] Presently produced motor vehicles, such as modern automobiles, are inherently equipped with lighting systems for providing interior and exterior illumination to the vehicle driver. Such lighting systems include a series of light assemblies mounted or integrated on the front, sides and rear of the vehicle. The purpose of these light assemblies is to provide the driver with exterior lighting to safely operate the vehicle in low-light conditions such as night driving, and to enhance the visibility of the vehicle. These lighting systems also display information about the vehicle's presence, location, size, approach direction, etc., and provide signaling functionality to indicate what the operator wants to do with the vehicle. [0003] All cars must be fitted with rear brake ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V13/00F21S8/10B60Q1/00F21W101/02F21W107/10
CPCF21Y2101/02G02B6/0095F21S48/1241G02B6/0038B60Q2400/30B60Q1/0041B60Q1/28B60Q2400/20F21Y2115/10F21S41/24
Inventor L·F·施瓦布
Owner GM GLOBAL TECH OPERATIONS LLC
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