Headlight Device Brightness via Tri-Source Sandwich Arrangement
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Solution Overview
Problem
Existing headlight devices appear dim when only the low beam is turned on due to a reduced light-emitting area compared to when both beams are active.
Innovation Solution
The headlight device incorporates multiple light sources, including a first light source for high beam, second and third light sources for low beam, positioned on opposite sides of the first light source to sandwich it, with no low beam source on a straight line intersecting the second and third light sources, and an illumination opening that follows the external shape of the headlight, ensuring even illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the second light source and third light source are disposed on opposite sides of the first light source, then the entire headlight can be made to appear bright, but the device complexity increases
Solution Approach 1:
The headlight is segmented into multiple light sources (first light source for high beam, second and third light sources for low beam) positioned at different locations. This segmentation allows each light source to illuminate specific regions, and when combined, they create the effect of the entire headlight appearing bright without requiring every region to be actively illuminated simultaneously.
Solution Approach 2:
The patent transitions from a single-dimensional illumination approach to a multi-dimensional arrangement by positioning light sources at different spatial locations (opposite sides of the first light source). This spatial distribution across multiple dimensions creates comprehensive coverage that makes the entire headlight appear bright.
2Illumination intensity
If multiple light sources are used to illuminate the entire headlight, then the brightness is improved, but the number of components increases
Solution Approach 1:
Instead of illuminating every part of the headlight simultaneously, the patent uses partial action by activating only specific light sources (second and third light sources for low beam) while leaving other regions (first light source for high beam) dark. This partial illumination strategy achieves the appearance of brightness without requiring all components to be active.
3Illumination intensity
If the illumination opening follows the external shape of the headlight device, then the brightness distribution is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The illumination opening is designed with local quality by following the external shape of the headlight device. This allows each region of the illumination opening to match the corresponding external contour, creating uniform brightness distribution across different areas of the headlight while maintaining aesthetic consistency.
Data Source
AI summary
A headlight device includes a first light source for high beam, a second light source for low beam and a third light source for low beam. In the headlight device, the second light source and the third light source are disposed on opposite sides of the first light source so as to sandwich the first light source therebetween. Thus, it is possible to provide a headlight device for which the entirety can be made to appear bright.