Automobile Grab Handle Lighting Module with Dual LED Orientation
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Solution Overview
Problem
Existing lighting modules for motor vehicle gripping levers illuminate the ground effectively but often excessively illuminate the sash between the lever and the vehicle opening, causing unattractive irregular light spots and aesthetic issues.
Innovation Solution
A dual-light-source module with a first light-emitting diode oriented along the axis to illuminate the ground and a second diode oriented transversely to illuminate the area between the lever and the opening, each with tailored power and direction to avoid excessive illumination and improve aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light source is sized to illuminate the ground effectively, then ground illumination is sufficient, but the sash area receives excessive light causing aesthetic issues
Solution Approach 1:
Different light sources are assigned to different zones with appropriate illumination characteristics. The first light source is sized and oriented for ground illumination, while the second light source has lower power and is oriented to illuminate only the sash area. This local quality approach ensures each zone receives appropriate illumination without affecting other areas, resolving the aesthetic issue while maintaining manufacturing simplicity.
2Adaptability or versatility
If light beams are emitted in several directions from a single source, then multiple areas are illuminated, but irregular light spots are formed on the sash
Solution Approach 1:
The single multi-directional light source is replaced with two separate light sources, each emitting light in a specific direction. The first light source emits light substantially along its axis toward the ground, while the second light source emits light transversely toward the sash area. This segmentation eliminates the formation of irregular light spots on the sash while maintaining comprehensive illumination coverage of both areas.
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 effectively illuminates the ground and the area between the lever and the opening without excessive illumination, enhancing the vehicle's appearance and functionality.
Implementation Method 1
a first light source formed by at least a first light-emitting diode emitting a first beam of light oriented substantially along the axis of said first diode
Implementation Method 2
a second light source formed by at least one second light-emitting diode emitting a second beam of light oriented essentially along the axis of said second diode transversely to the axis of the first light-emitting diode
Data Source
Figure 1~5
Figure 2
Figure 3~4
AI summary
The invention relates to a lighting module for a grab handle (2b) of a motor vehicle door (1), said module (11) comprising a first light source (S1) formed by at least one first light-emitting diode (15a, 15b) emitting a first beam of light (3) oriented essentially along the axis of said first diode (15a, 15b), capable of illuminating an area of the ground (4) located near said vehicle, said module (11) further comprising a second light source (S2) formed by at least one second light-emitting diode (16) emitting a second beam of light (3b) oriented essentially along the axis of said second diode (16) transversely to the axis of the first light-emitting diode (15a, 15b), capable of illuminating an area (5) located between the grab handle (2a) and the door (1), the second light source (S2) having a luminous power lower than the first light source. (S1).