Multifocal Lens Segmentation for Heat and Pattern Control
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Solution Overview
Problem
Current light fixtures face challenges in meeting motor vehicle safety standards due to increased heat issues and limited functionality, requiring more powerful or numerous light sources, which restricts their ability to change light patterns and utilize different colors effectively.
Innovation Solution
A multifocal lens with an incident curved surface composed of multiple incident areas, each corresponding to a focal point, allows light sources with different spectra to project varied light patterns by arranging incident surfaces circularly around an axis, enabling more versatile and efficient light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the power or number of light sources is increased to meet motor vehicle safety standards, then the illumination intensity is improved, but the heat generation increases which affects service life
Solution Approach 1:
The incident curved surface is divided into multiple incident areas, each corresponding to a different focal point. This segmentation allows light from multiple light sources to be distributed to different focal points, achieving the required illumination intensity without concentrating excessive heat in a single location, thereby extending service life
2Device complexity
If a single lens with a single light source is used, then the device complexity is reduced, but the adaptability and light pattern versatility are limited
Solution Approach 1:
The lens is designed with multiple incident areas corresponding to different focal points, enabling a single lens structure to perform multiple functions by supporting different light sources (different colors, different intensities) at different focal points. This allows the generation of various light patterns (single color, mixed colors, different intensities) without requiring multiple separate lighting systems
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 multifocal lens design enhances light fixture functionality by generating multiple light patterns with different spectra while meeting regulatory luminous intensity requirements, offering more styles and applications without the heat-related issues of existing systems.
Implementation Method 1
a lens provided with an incident curved surface and an emergent curved surface... light emitted from light sources with different luminescence properties located at the respective focal points correspondingly is passed through the lens and projected
Data Source
AI summary
A multifocal lens is revealed. The multifocal lens includes a lens with an incident curved surface and an emergent curved surface arranged opposite to each other. The incident curved surface consists of a plurality of incident areas disposed circularly around an axis of the lens and each of the incident areas is formed by a plurality of incident surfaces. The two adjacent incident surfaces belonged to the same incident area are not in contact with each other optimally and the incident areas have respective focal points correspondingly. Thereby light with different properties emitted from a plurality of light sources corresponding to the focal points of the respective incident areas is passed through the multifocal lens and projected to have preset light patterns for warning or decoration.