Integrated Automotive Lamp Optics for Compact Beam Shaping
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Solution Overview
Problem
Existing automotive lamp modules are large in size, complex in structure, difficult to install, and prone to optical system accuracy issues due to the distance and positioning requirements between primary and secondary optical elements, leading to high manufacturing costs and dimming challenges.
Innovation Solution
A compact automotive lamp optical element with a light-incident portion, a transmission portion with increasing cross-sectional area, and a light-emitting portion featuring a convex surface, integrated with a light source, which minimizes size, simplifies installation, and reduces stray light through a light-absorbing coating on side surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between the primary optical element and the secondary optical element is increased to ensure proper light distribution, then the optical performance is improved, but the size of the automotive lamp module increases
Solution Approach 1:
The patent combines the primary optical element and secondary optical element into a single integrated optical element with unified light-incident, transmission, and light-emitting portions. This merging eliminates the need for separate elements and large spacing between them, achieving compact module size while maintaining optical performance through the integrated design of light convergence and emission functions
Solution Approach 2:
The patent transitions from a multi-element spatial arrangement requiring large distances to a single-element design where different optical functions (light convergence, transmission, and emission) are stacked or integrated within a compact three-dimensional structure, effectively utilizing vertical or radial dimensions to achieve functional separation without increasing overall module size
2Reliability
If multiple separate optical elements are used to achieve light distribution, then the optical functionality is improved, but the installation complexity increases due to positioning requirements
Solution Approach 1:
The patent merges multiple optical elements into one integrated component that performs both light convergence and emission functions, eliminating the need for complex positioning and alignment of separate elements during installation. The unified structure requires only single-element mounting while maintaining all necessary optical functionalities
3Manufacturing precision
If mounting brackets and accessories are added to position optical elements, then the positioning accuracy is improved, but the structural complexity increases
Solution Approach 1:
The patent integrates the positioning function directly into the optical element structure itself, with the light-incident portion, transmission portion, and light-emitting portion forming a self-contained unit that maintains internal positioning accuracy without requiring external mounting brackets or accessories, thereby simplifying the overall structure while preserving manufacturing precision
Solution Approach 2:
The integrated optical element is designed to be self-positioning through its internal structure, where the relative positions of light-incident, transmission, and light-emitting portions are fixed within the single element, eliminating the need for external positioning accessories and reducing structural complexity
4Reliability
If separate primary and secondary optical elements are used, then the light distribution function is improved, but the number of accessories and mounting requirements increases
Solution Approach 1:
The patent combines the light distribution functions of separate primary and secondary optical elements into a single integrated element where the light-incident portion handles light convergence and the light-emitting portion handles light emission and distribution. This unified design maintains all necessary light distribution functionalities while eliminating the need for multiple accessories and mounting hardware
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 results in a small, easy-to-install automotive lamp module with high optical accuracy, low dimming difficulty, and reduced manufacturing costs, while eliminating stray light and enhancing the automotive lamp's light shape quality.
Implementation Method 1
The light-incident portion is provided with at least one light-incident structure configured to converge light
Implementation Method 2
An area of a cross section of the transmission portion gradually increases in a light transmission direction
Implementation Method 3
A light-emitting convex surface is formed on one end of the light-emitting portion facing away from the transmission portion
Data Source
AI summary
Provided are an automotive lamp optical element, an automotive lamp module and a vehicle. The automotive lamp optical element includes a light-incident portion, a transmission portion and a light-emitting portion connected in sequence. The light-incident portion is provided with at least one light-incident structure configured to converge light. An area of a cross section of the transmission portion gradually increases in a light transmission direction. A light-emitting convex surface is formed on one end of the light-emitting portion facing away from the transmission portion. The automotive lamp module includes the above automotive lamp optical element, and further includes at least one light source. The at least one light source is disposed in one-to-one correspondence with the at least one light-incident structure.