Automobile Lighting Apparatus with Integrated Reflector and Light Guide
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Solution Overview
Problem
Current automobile lighting apparatuses have low luminous efficiency due to direct light distribution and complex structures, particularly in indirect illumination types that use separate light sources for reflectors and light guides.
Innovation Solution
A lighting apparatus for automobiles that incorporates a reflector to reflect light from a light source and a light guide illuminated by the light source, improving luminous efficiency and simplifying the structure by directing light through the light guide and reflector within specific effective angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If separate light sources are used for reflector and light guide in indirect illumination type lighting apparatus, then illumination coverage is improved, but luminous efficiency deteriorates and device complexity increases
Solution Approach 1:
The patent merges the illumination functions for the reflector and light guide into a single integrated light source. The light source is positioned to simultaneously illuminate both the reflector (for direct reflection) and the light guide (for indirect illumination), eliminating the need for separate light sources and improving overall luminous efficiency while maintaining comprehensive illumination coverage.
Solution Approach 2:
The single light source is designed with multi-functionality to serve dual purposes: illuminating the reflector for direct light reflection and illuminating the light guide for indirect illumination. This universal light source configuration reduces device complexity and energy loss associated with multiple separate light sources while achieving both illumination objectives.
2Illumination intensity
If separate light sources are used for reflector and light guide, then illumination coverage is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple illumination functions into a single integrated light source assembly. By positioning one light source to simultaneously illuminate both the reflector and light guide, the design eliminates redundant components and simplifies the overall structure while maintaining comprehensive illumination coverage.
3Loss of energy
If light is directed through both reflector and light guide, then luminous efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The light source is designed with directional characteristics that provide different illumination qualities to different components. The light distribution is optimized to provide appropriate intensity and angle for reflector illumination while simultaneously providing suitable illumination for the light guide, allowing each component to function effectively with localized optimization rather than requiring uniform high precision across all light paths.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances luminous efficiency and design aesthetics while reducing costs by effectively utilizing light within the light guide and reflector, providing improved illumination and a simpler structure compared to existing systems.
Implementation Method 1
a reflector which reflects the light produced by the light source
Data Source
AI summary
Provided is a lighting apparatus for an automobile which improves luminous efficiency. To this end, the lighting apparatus for an automobile according to the embodiment of the present invention includes: a light source which produces light; a reflector which reflects the light produced by the light source; and a light guide which is illuminated with the light produced by the light source while the light passes through an interior of the light guide.