Asymmetric Light Source in Narrow Aperture Headlight System
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Solution Overview
Problem
Conventional vehicle headlights have a fixed aperture size, which limits their ability to illuminate a larger area efficiently, as they are typically static and cannot adjust to reduce aperture size effectively for improved light distribution.
Innovation Solution
A light system with a light source located off-center relative to the optical axis, using reflectors and lenses to redirect light at an angle, allowing for a reduced aperture size and enhanced light distribution through multiple lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the aperture size is increased to illuminate a larger area, then the illumination area is improved, but the light system becomes less efficient and produces more light spillage
Solution Approach 1:
The light source is positioned asymmetrically relative to the optical axis, specifically offset horizontally and/or vertically from the center. This asymmetric positioning allows the reflector and lens to redirect light at angles that illuminate a larger area while maintaining system efficiency and reducing light spillage through the aperture.
Solution Approach 2:
The patent introduces angular redirection of light by positioning the light source off-center, causing light to travel at angles relative to the optical axis. This dimensional change in light path orientation enables broader area illumination without proportionally increasing aperture size or light loss.
2Productivity
If the light source is positioned off-center to redirect light at angles, then the illumination efficiency is improved, but the optical alignment becomes more complex
Solution Approach 1:
The asymmetric positioning of the light source relative to the optical axis creates angled light paths that improve illumination efficiency. The reflector and lens are configured to work with this asymmetric arrangement, redirecting light effectively while the patent acknowledges the increased optical alignment complexity as a trade-off for the efficiency gains.
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
This configuration enables a more efficient illumination of a larger area with reduced light spillage, improving visibility and safety by directing light more effectively around the vehicle.
Implementation Method 1
the one or more reflectors redirect the light through the lens
Implementation Method 2
the one or more reflectors redirect the light through the lens
Data Source
AI summary
A light system comprising: (a) one or more reflectors; (b) a lens; (c) an optical axis extending through the one or more reflectors, the lens, or both; and (d) a light source located entirely on one side of the optical axis so that light from the light source is directed at an angle relative to the one or more reflectors and the one or more reflectors redirect the light through the lens.