Automobile Lamp Lens Array with Stepped Cell Boundaries
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Solution Overview
Problem
The complex stacking structure of micro lens arrays in automobile lamps leads to manufacturing difficulties and deterioration in beam pattern efficiency due to light emission after passing through multiple components.
Innovation Solution
A simplified single-layer micro lens array structure with stepped portions between cells, forming a predetermined beam pattern, where cells in different regions have varying thicknesses and shapes to optimize light distribution and beam formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a micro lens array with a plurality of components including an entrance lens array, a shield, an exit lens array are sequentially stacked, then the beam pattern can be formed, but the structure becomes complicated and manufacturing difficulty increases
Solution Approach 1:
The patent merges multiple separate optical components (entrance lens array, shield, exit lens array) into a single integrated lens array structure. This single structure includes multiple cells with different thicknesses that perform the functions of both the entrance and exit lens arrays along with the shield, thereby reducing the number of stacked components and simplifying the overall structure while maintaining beam pattern formation capability.
Solution Approach 2:
The lens array is divided into multiple cells with different thicknesses (first thickness and second thickness) arranged in different regions. This segmentation allows different portions of the lens array to perform different optical functions, effectively replacing multiple separate components with a single segmented structure that maintains the required beam pattern formation while reducing complexity.
2Reliability
If a micro lens array with multiple stacked components is used, then the beam pattern can be formed, but light emission efficiency deteriorates due to passing through multiple components
Solution Approach 1:
By merging multiple optical components into a single lens array structure, light passes through only one integrated component instead of multiple stacked components. This reduces the number of interfaces and material layers light must traverse, minimizing energy loss and improving light emission efficiency while still achieving the required beam pattern formation through the segmented cell design.
3Reliability
If a complicated stacking structure of multiple components is used, then the beam pattern can be formed, but productivity decreases due to manufacturing difficulty
Solution Approach 1:
The integration of multiple components into a single lens array reduces the number of assembly steps and manufacturing processes required. Instead of separately manufacturing and assembling multiple stacked components, the single integrated structure can be manufactured in one process, significantly improving productivity and reducing manufacturing complexity while maintaining the beam pattern formation function through its segmented cell design.
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
Improves productivity and efficiency of beam pattern formation by simplifying the lens array structure, enhancing light emission and beam pattern quality while reducing manufacturing complexity.
Implementation Method 1
a lens array provided in front of the light source, wherein light emitted from the light source passes through the lens array and forms a predetermined beam pattern
Data Source
AI summary
A lamp for an automobile and the automobile are disclosed. According to one aspect of the present disclosure, disclosed is a lamp for an automobile, the lamp including: a light source configured to generate and emit light; and a lens array provided in front of the light source. The light, which has been emitted from the light source, is emitted to the outside via the lens array and forms a predetermined beam pattern, the lens array includes a plurality of cells provided in the front region of the lens array, and stepped portions are formed at boundaries between the plurality of cells.