Solar Simulator Light Conduit Array for Uniform Irradiance
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Solution Overview
Problem
Continuous exposure type solar simulators with large exposure areas face challenges in achieving uniform irradiance on the test plane due to overlapping and interfering radiation from multiple light sources, making it difficult to control and maintain, leading to measurement errors in photovoltaic module testing.
Innovation Solution
A solar simulator design incorporating a light conduit array with inner reflecting surfaces and a light source array, where the light conduit array parcels and reflects radiation to achieve even distribution across multiple exposure regions, allowing for adjustment of light source positions to optimize irradiance uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a plurality of light sources is used to achieve large exposure area, then the exposure area is increased, but the uniformity of irradiance on the test plane deteriorates due to overlapping and interfering radiation
Solution Approach 1:
The patent divides the exposure area into multiple independent exposure regions, each illuminated by a separate light source. This segmentation prevents overlapping and interfering radiation between light sources, allowing each region to maintain uniform irradiance independently while collectively covering a large total exposure area.
2Manufacturing precision
If the relative positions of light sources and reflective elements are adjusted to improve irradiance uniformity, then the uniformity of irradiance is improved, but the device complexity and maintenance difficulty increase
Solution Approach 1:
The patent designs each exposure region with its own dedicated light source and reflective elements positioned to optimize local irradiance uniformity. This local optimization approach allows each region to achieve good uniformity independently without requiring complex global adjustments, simplifying both the initial design and subsequent maintenance.
3Manufacturing precision
If traditional light distribution design methods are used to control irradiance uniformity, then some uniformity can be achieved, but the adjustment process is time-consuming and difficult to maintain
Solution Approach 1:
By segmenting the exposure area into independent regions with dedicated light sources, the patent eliminates the need for time-consuming global adjustments. Each region can be independently optimized and maintained, significantly reducing the time and complexity of adjustments compared to traditional methods that require coordinating multiple light sources and reflective elements.
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 design achieves better uniformity of irradiance on the test plane, reducing measurement errors and simplifying the adjustment process, while maintaining even radiation distribution across large exposure areas.
Implementation Method 1
Each of the light conduits has the inner reflecting surfaces to reflect the ray radiation
Data Source
AI summary
A solar simulator including a light source and a light conduit array is provided. The light source is used for emitting a beam of ray radiation. The light conduit array includes a plurality of light conduits closely adjacent to one another. Each of the light conduits has an inner reflecting surface used for reflecting the ray radiation, a light input side, and a light output side opposite to the light input side. The ray radiation enters the light conduits through the light input side and emitting from the light output side.