Vehicle Lamp Optical Element Assembly Compact Design
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Solution Overview
Problem
Existing vehicle lamp modules are too large and not suitable for compact vehicle designs, leading to a loss of light effect and non-compliance with regulatory requirements when downsized.
Innovation Solution
A vehicle lamp optical element assembly with a primary and secondary optical element, where the optical axes of the light entrance parts are inclined towards the secondary optical element, and the light exit part is a concave arc surface, allowing for a smaller size while maintaining effective light projection, integrated with a radiator, circuit board, and optical element holders for precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of the vehicle illumination module is reduced to meet compact vehicle lamp requirements, then the module size is improved, but the light effect is lost and regulatory requirements are not met
Solution Approach 1:
The optical system is divided into two distinct elements: a primary optical element for light collection and initial shaping, and a secondary optical element for final light projection. This segmentation allows each element to be optimized for its specific function, enabling compact overall size while maintaining effective light output that meets regulatory requirements
Solution Approach 2:
The primary optical element is positioned within or adjacent to the secondary optical element, with the light source located at the focal point of the primary element. This nested arrangement allows the two optical elements to work together in a compact configuration, reducing the overall module size while preserving the light gathering and projection functions necessary for effective illumination
2Area of stationary object
If the light emergent surface opening dimensions are reduced from 40-70 mm to meet compact design requirements, then the appearance is improved, but the light shape does not meet regulatory requirements
Solution Approach 1:
The optical elements feature locally optimized surface geometries with specific curvature radii and angular ranges designed for precise light control. The primary optical element has a light emergent surface with curvature radius R1 at 5-20mm, and the secondary element has curvature radius R2 at 10-30mm, with specific angular ranges (α: 15-45°, β: 10-30°) that locally optimize light distribution to achieve accurate light shapes meeting regulatory requirements despite reduced overall opening size
Solution Approach 2:
Both optical elements utilize curved surface geometries rather than flat surfaces. The primary optical element employs a spherical or aspherical surface with curvature radius R1, and the secondary optical element uses a spherical or aspherical surface with curvature radius R2. These curved surfaces efficiently redirect and shape light rays, enabling precise light shape control from a compact opening size
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 achieves a smaller volume and light emergent surface size, ensuring a personalized and technologically advanced appearance while maintaining light effectiveness and regulatory compliance.
Implementation Method 1
light can passe through the primary optical element and the secondary optical element successively and then is projected to form an illuminating light shape
Implementation Method 2
the primary optical element includes at least one light entrance part, a light transmission part and a light exit part arranged successively along a light emergent direction
Data Source
AI summary
A vehicle lighting module comprises a primary optical element and a secondary optical element. The primary optical element comprises at least one light entrance part, a light transmission part, and a light exit part sequentially provided along a light exit direction. Either the optical axes of the light entrance parts on either side of the primary optical element incline towards an optical axis of the secondary optical element and the light exit part is a concave arc surface, or the direction of the optical axis of the light entrance part is the same as that of the optical axis of the secondary optical element and the horizontal cross-sectional line and/or vertical cross-sectional line of the light exit part is configured as a curved line protruding forward. The vehicle lighting module has a small volume while ensuring light effects, and can be adapted to narrow and compact vehicle lamp modeling.