Vehicle Lamp Light Guiding Lenses for Cut-Off Line Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle lamps struggle to form an optimal beam pattern while maintaining a slim form factor, leading to potential glare and reduced field of view due to misalignment of light guiding lenses.
Innovation Solution
The lamp design includes multiple light sources and light guiding lenses arranged vertically, with adjustable edge portions to ensure the cut-off line of the beam pattern aligns correctly, even when lenses are positioned differently, using inclined edge portions to maintain parallel alignment with the horizontal line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If multiple light guiding lenses are arranged vertically to achieve a slim form factor, then the lamp width is reduced, but the cut-off line alignment deteriorates due to position differences between lenses
Solution Approach 1:
The patent applies local quality by giving each light guiding lens a specific edge portion orientation angle tailored to its vertical position. The first light guiding lens has an edge portion extending parallel to the horizontal line (0 degrees), while the second and third light guiding lenses have edge portions extending at inclined angles (e.g., 10 degrees and -10 degrees). This localized differentiation compensates for position differences and ensures proper cut-off line alignment without requiring high manufacturing precision for lens positioning.
Solution Approach 2:
The patent changes the orientation angle parameter of the edge portions in light guiding lenses to compensate for vertical position differences. By adjusting the edge portion orientation angles according to the vertical positions of the light guiding lenses, the cut-off lines from all lenses align properly, resolving the alignment issue caused by the slim vertical arrangement.
2Area of stationary object
If light guiding lenses are positioned at different vertical locations to form a beam pattern, then the illumination coverage is improved, but glare occurs due to misaligned cut-off lines
Solution Approach 1:
The patent uses local quality by configuring each light guiding lens's edge portion with a specific orientation angle appropriate for its vertical position. This ensures that the cut-off lines from all lenses align horizontally, preventing glare to oncoming traffic while maintaining broad illumination coverage through the vertical arrangement of multiple lenses.
Solution Approach 2:
The patent applies preliminary anti-action by pre-configuring the edge portion orientation angles of the light guiding lenses during design to counteract the potential glare problem. By anticipating the alignment issue that would arise from vertical positioning differences, the design proactively sets appropriate angles to ensure cut-off line alignment, thereby preventing glare before it can occur during actual operation.
3Ease of manufacture
If the edge portions of all light guiding lenses are oriented parallel to the horizontal line, then the assembly is simplified, but the cut-off line alignment deteriorates when lenses are at different vertical positions
Solution Approach 1:
The patent resolves this contradiction by applying local quality - instead of uniformly orienting all edge portions parallel to the horizontal line, each light guiding lens's edge portion is oriented at a specific angle appropriate to its vertical position. This localized differentiation maintains assembly simplicity while achieving proper cut-off line alignment, as each lens is configured for its specific position rather than requiring precise positioning of uniformly oriented lenses.
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
Prevents glare and maintains a clear field of view by ensuring the cut-off line of the beam pattern remains parallel to the horizontal line, enhancing both functionality and aesthetics.
Implementation Method 1
a light guiding lens having a light receiving portion to which light emitted from a corresponding light source among the plurality of light sources is incident; a light emission portion disposed in front of the light receiving portion so as to emit the light incident thereto from the light receiving portion
Data Source
AI summary
A lamp for the vehicle includes a plurality of light sources arranged in a vertical direction; and a plurality of light guiding lenses respectively disposed in front of the plurality of light sources and arranged in an arrangement direction of the plurality of light sources. Each of the plurality of light guiding lenses includes: a light receiving portion to which light emitted from a corresponding light source is incident; a light emission portion disposed in front of the light receiving portion to emit the light incident from the light receiving portion; and a shield portion including an edge portion disposed at a rear focus of the light emission portion. The edge portion is configured to obstruct a portion of the light from being directed to the light emission portion, and edge portions of at least two of the plurality of light guiding lenses have different orientation angles.