Mobility Vehicle Optical Module With Aspherical Lens Light Distribution
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Solution Overview
Problem
The reduction in size of optical systems in mobility vehicles compromises light quantity and front field of view, failing to meet regulatory requirements.
Innovation Solution
An optical module with a transmission lens having aspherical surfaces and multiple light source units, each with a reflector, is designed to emit light efficiently, allowing for a slimmed design while maintaining sufficient light output and optical efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the optical system size is reduced, then the overall size of the optical module is decreased, but the light quantity and front field of view are compromised, failing to meet regulatory requirements
Solution Approach 1:
The optical system is divided into multiple light source units (first, second, third light source units) with each unit having its own reflector and transmission portion. This segmentation allows independent optimization of each unit's optical path and light distribution, enabling the system to maintain sufficient total light output while reducing the overall package size through compact arrangement of discrete units.
Solution Approach 2:
The transmission lens is designed with an aspherical light incident surface that extends in the lateral direction, creating a multi-dimensional light transmission path. This dimensional extension allows the optical system to achieve greater light distribution efficiency within a reduced volumetric footprint, maintaining illumination requirements while shrinking the overall system size.
2Volume of moving object
If the optical system size is reduced, then the overall size of the optical module is decreased, but the front field of view is compromised, failing to meet regulatory requirements
Solution Approach 1:
Multiple light source units are strategically positioned and oriented to cover different angular regions of the front field of view. The first light source unit projects to a first area, the second to a second area, and the third to a third area, ensuring comprehensive angular coverage despite the reduced overall system size.
Solution Approach 2:
Each light source unit is equipped with a specifically shaped reflector (first, second, third reflectors) tailored to its position and function. These reflectors are designed with specific geometries to direct light into particular angular ranges, ensuring that each local unit contributes optimally to the overall field of view coverage.
3Illumination intensity
If multiple light source units are used to maintain light quantity, then the light output is sufficient, but the device complexity increases
Solution Approach 1:
The transmission lens integrates multiple transmission portions into a single unified component with a continuous aspherical light incident surface. This merging approach consolidates what would otherwise be separate optical elements, reducing assembly complexity and alignment requirements while maintaining the benefits of multiple light source units.
Solution Approach 2:
The aspherical transmission lens serves multiple functions simultaneously: it transmits light from all light source units, corrects optical aberrations, and shapes the beam patterns for different light sources. This multi-functionality reduces the need for additional specialized optical components, thereby managing device complexity.
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 module achieves a reduced overall size, facilitates packaging, ensures high optical efficiency, and enhances illumination quality by optimizing light distribution and beam patterns.
Implementation Method 1
Each of the plurality of transmission portions includes a light incident surface formed as an aspherical surface... aspherical transmission lens... correct optical aberrations and focus light efficiently
Implementation Method 2
a reflector configured to reflect light emitted from the light source so that the light travels to a corresponding one of the plurality of transmission portions of the transmission lens
Data Source
AI summary
An optical module for mobility vehicles reduces an overall size of an optical system and thus facilitates a package configuration. The optical module for mobility vehicles also ensures a sufficient amount of light and high optical efficiency are through efficient operation of light sources and improves quality of illumination images projected onto a light irradiation area.