EL, PL, UVF, and Contact Resistance tools designed for labs, manufacturing and the field
At BrightSpot Automation, we design specialized imaging and electrical measurement systems for photovoltaic testing—spanning EL (electroluminescence), PL (photoluminescence), UVF (ultraviolet fluorescence), and contact resistivity. Our tools are used across the full PV lifecycle: from early-stage R&D to scaled manufacturing, on-site installation validation, and end-of-life diagnostics.
From Terrestrial to Space PV, from Silicon to Perovskites, from R&D to field testing, we provide the Solar Energy Industry with specialized manufacturing and measurement tools.
Reveal hidden defects, cracks, and junction issues with EL/PL imaging. These tools are optimized for every part of the PV value chain.
The CellSpot system enables imaging of defects and non-uniformities in solar cells and minimodules without room light artifacts. Non-contact PL imaging can even be applied to partially processed cells, while comparing EL to PL images allows the user to differentiate between series-resistance and bulk/surface quality effects.
PanEL-Spot enables EL Imaging on a range of PV samples, from individual solar cells to full-size commercial panels, and everything in between. See why your cells and panels exhibit low efficiency, including defects such as cell cracks, wire soldering problems, and thin-film shunting.
TravEL-Spot gives you the ability to take EL imaging to the field, in a convenient and portable travel case. See why your panels are exhibiting an energy shortfall, including defects such as cell cracks, wire soldering problems, potential-induced degradation (PID), and thin-film shunting.
UVF is a high-throughput, non-contact method of imaging defects and bill of material variations in solar panels.
The UVF-Spot combines a high-power UV flash with a highly sensitive pole mounted camera​ and can image multiple panels every 5 seconds to see problems such as cell cracks, sealing failures, and bill of material (BOM) variations.Â
UVF DroneSpot brings BrightSpot’s UV fluorescence imaging into the sky. This system is designed for large-scale inspection of solar farms, enabling fast detection of PID, delamination, and encapsulant degradation from above.
The UVF Kit is a lightweight, portable system for quick UV fluorescence testing in the field. It includes a handheld UV light source and a compact camera system, making it ideal for on-the-spot inspections, training, or field research.
Measure contact resistivity between the metal gridlines and the semiconductor, the line resistance of the gridlines, and sheet resistances of various conductive layers for both R&D experiments and factory QC.
See our Custom EL/PL Solutions for any shape/size/orientation application
Inject current via clipping to wires, probing pads, chuck busbar probing, or multiplexed probing of arrays of thin-film cells
The UV Fluorescence technique works with panels that have polymer backsheets. Fluorophores are contained in panel encapsulants and backsheets – leading to fluorescence in the visible spectrum when exposed to UV light.
Control
IMPEL is the unified control platform for BrightSpot imaging systems, enabling seamless coordination of camera, light sources, and power supply. From a single interface, users can adjust exposure settings, trigger PL or EL sequences, and automate capture workflows across multiple system components.
Enhancement
Built-in image processing tools help users sharpen contrast, highlight defects, and visualize subtle variations in cell or panel performance. With support for custom filters and multispectral imaging, IMPEL ensures every captured frame delivers actionable insights, whether in R&D or field diagnostics.
Report
IMPEL simplifies documentation by generating detailed reports with embedded images, metadata, and measurement context. Export results for internal QA, client acceptance, or long-term traceability – standardized and ready to share.
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BrightSpot Automation LLC Boulder, CO 80301 USA
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