Sunlight focusing analysis device for vehicle lamp lens, and method for using same
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Solution Overview
Problem
Existing devices fail to analyze and verify ablation of peripheral parts of vehicle lamp lenses caused by sunlight focal spots outside the designed projection optical axis, as they do not account for focusing outside the optical axis, leading to unpredictable damage dependent on parking direction and sunlight intensity.
Innovation Solution
A sunlight focusing analysis device with an adjustable horizontal base, lens holder, test piece holder, and inclination angle adjustment mechanism, allowing for 360° rotation and adjustment of sunlight incidence angles to observe and analyze focal spots outside the optical axis, using a sunlight intensity meter and focal spot position measurement gauge to assess damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing focal spot measurement devices are used, then measurement can be performed on optical axis, but they cannot analyze focal spots outside the optical axis caused by sunlight
Solution Approach 1:
The patent introduces a rotatable test piece holder that can be rotated around the optical axis, transforming a static measurement system into a dynamic one. This allows the test piece to be positioned at different angular locations to capture focal spots outside the optical axis while maintaining the same optical path, thus improving adaptability without significantly increasing device complexity
Solution Approach 2:
The measurement device is designed to serve multiple functions: it can measure focal spots on the optical axis and also measure focal spots outside the optical axis by rotating the test piece holder. This multi-functionality allows a single device to address both traditional and new measurement requirements, improving versatility without requiring separate specialized devices
2Adaptability or versatility
If fixed measurement setup is used, then device structure is simple, but it cannot adapt to different sunlight incidence angles and parking directions
Solution Approach 1:
The test piece holder is designed to be rotatable, allowing dynamic adjustment of the test piece's angular position. This enables the system to adapt to different sunlight incidence angles and simulate various vehicle parking directions, significantly improving adaptability to different environmental conditions
Solution Approach 2:
The system allows operators to manually rotate the test piece holder to desired angles based on actual sunlight conditions or test requirements. This self-adjustment capability enables the device to adapt to different conditions without requiring complex automated control systems, maintaining ease of operation while improving versatility
3Reliability
If optical axis focused sunlight is analyzed, then measurement precision is high, but it cannot verify ablation of peripheral parts caused by off-axis focal spots
Solution Approach 1:
By making the test piece holder rotatable, the system can dynamically position the test piece to intercept focal spots at different angular locations. This allows accurate measurement and verification of off-axis focal spots that cause peripheral ablation, improving the reliability of defect verification while managing the difficulty of detection through systematic angular positioning
4Adaptability or versatility
If comprehensive angle adjustment is implemented, then all focal spots can be observed, but device structure becomes more complex
Solution Approach 1:
The adjustment mechanism is segmented into two independent parts: the rotatable test piece holder for angular positioning and the optical system for focal spot formation. This segmentation allows each component to perform its specific function with simple structure, while their combination achieves comprehensive observation coverage through functional coordination
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
Enables comprehensive analysis and rapid observation of focal spot ablation under various light conditions, adapting to different platforms and lens sizes, ensuring effective verification and analysis of potential defects in vehicle lamps.
Implementation Method 1
a high temperature in a small area is caused by focal spots formed on the peripheries of the lenses after sunlight is refracted and totally reflected by the lenses
Implementation Method 2
a high temperature in a small area is caused by focal spots formed on the peripheries of the lenses after sunlight is refracted and totally reflected by the lenses
Implementation Method 3
a horizontal rotary table capable of rotating around a rotating shaft
Implementation Method 4
a vertical swing arm rotatably connected to the fixed support arm through a swing arm shaft
Implementation Method 5
focal spots formed on the peripheries of the lenses after sunlight is refracted and totally reflected by the lenses
Implementation Method 6
consequentially, resulting in melting or ablation of the lamps and the peripheral plastic parts of the lamps
Implementation Method 7
consequentially, resulting in melting or ablation of the lamps and the peripheral plastic parts of the lamps
Data Source
AI summary
A sunlight focusing analysis device relating to an analysis and verification device for a potential failure mode of a vehicle lamp projection unit, and a method for using same, and in particular to the analysis and verification of ablation of peripheral parts of a lens caused by focal spots formed by sunlight focused via a vehicle lamp lens. The device comprises a base, a lens holder, and a test piece holder. A horizontal rotary table and an inclination angle adjustment mechanism are provided on the base; the inclination angle adjustment mechanism is formed by a fixed support arm and a vertical swing arm connected to each other; the lens holder is fixed on the vertical swing arm; the test piece holder is mounted on a test piece lifting platform below the lens holder.