Multi-Stage High Beam Module for Variable Pixel Width Headlights
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle high beam modules have large light exit surfaces, leading to large headlight sizes and inability to form high beam shapes with narrow pixel widths near the vehicle's straight ahead and wide pixel widths on both sides, resulting in high module costs and unsatisfactory appearance.
Innovation Solution
A vehicle high beam module with a lens group comprising multiple stages of lenses, including plano-convex lenses, to gather light and form a high beam shape with narrow pixel widths near the vehicle's straight ahead and wide pixel widths on both sides, achieved by setting light entry surface widths to decrease from outer regions to the central region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a condenser with a large light exit surface is used to form multiple pixel light shapes, then the resolution of the light shape is improved, but the size of the headlight module becomes excessively large
Solution Approach 1:
The condenser is divided into multiple light guide pieces, each corresponding to a specific light-emitting source. This segmentation allows each light guide piece to be optimized independently, reducing the overall size requirement while maintaining high resolution light shape formation capability.
Solution Approach 2:
The patent transitions from a single large light exit surface to multiple smaller light exit surfaces arranged in a specific spatial configuration. By distributing the light exit functions across multiple dimensions and positions, the system achieves high resolution without requiring a single large module footprint.
2Adaptability or versatility
If multiple high beam sources are used to form a multi-pixel light shape, then the ability to control dark regions is improved, but the module cost increases significantly
Solution Approach 1:
Each light guide piece is designed to serve multiple functions: it guides light from its corresponding source, forms a specific pixel in the light shape, and enables dark region control when coordinated with adjacent light guides. This multi-functionality reduces the need for additional specialized components, thereby controlling costs.
Solution Approach 2:
The patent combines the light guiding function, light shaping function, and dark region control function into a single integrated light guide piece structure. By merging these functions rather than using separate components for each, the system achieves versatility in dark region control without proportionally increasing module cost.
3Ease of manufacture
If uniform pixel widths are used in the light shape, then the manufacturing process is simplified, but the ability to match dark region width to vehicle position is reduced
Solution Approach 1:
The light guide pieces are designed with different specifications according to their position in the array. Light guide pieces corresponding to outer pixels have different dimensions and optical properties than those for central pixels, allowing each region to be optimized for its specific function while maintaining overall system manufacturability.
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 reduces the headlight's size, enhances light utilization, and achieves a high beam shape with desired pixel width distribution, improving safety and appearance while reducing costs.
Implementation Method 1
a lens group, arranged on an exit direction of light emitted by the light-emitting sources, and including at least two stages of lenses
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
A vehicle high beam module, comprising a plurality of light-emitting sources (6) and a lens group comprising at least two stages of lenses, wherein a first-stage lens (1) in the lens group comprises a plurality of light gathering units (11) that are arranged side by side and that have light entry surfaces of a set width, light emitted by the light-emitting sources (6) passes through the first-stage lens (1) and other lenses in the lens group in succession to then form a plurality of light shape forming units, the plurality of light shape forming units are arranged in succession in a high beam shape having a plurality of pixels, the width of each light shape forming unit corresponds to the set width of a respective corresponding light entry surface, and the set width of each light entry surface is set so that the width of the plurality of pixels deceases from outer regions of the light shape to a central region of the light shape. In addition, a vehicle headlight and a vehicle are also disclosed. A small opening design, and a high beam shape that has a narrow pixel width at the region near the front of the vehicle and a wide pixel width in regions at two sides at the front of the vehicle are achieved.