Tailored EL, PL, UVF, and Multi-Mode Systems for PV Testing
Not every photovoltaic application fits inside a standard box—and we don’t expect it to. BrightSpot offers customized imaging systems for factory line and robotic integration, offline testing, varied panel orientation and shape, and tight working distance constraints.
Optical components can be chosen to work with silicon, thin-films of different band gaps, and to probe different layers in tandem and multi-junction devices.
Our custom solutions have helped many of the 200 companies we have served across the PV value chain, in over 40 countries across the globe.
Factory integrated EL system that probes contact pads on panels moving on a conveyor belt under the camera.
2-camera EL/UVF inline system for sunnyside down imaging at a recycling/re-use company.
2-camera, 24-lamp PL system for sunnyside up imaging of partially assembled satellite panels
2-color biased PL system with filter wheel to separately image the top Perovskite cell and bottom silicon cell in a tandem architecture.
Sunnyside up imaging of satellite solar panels
“
– Michael Salvador, Co-Founder & CEO.
From these standardized tools into your customized solution.
The CellSpot system allows the user to image defects and non-uniformities in solar cells and minimodules without room light artifacts.
EL Imaging on a range of PV samples, from individual solar cells to full-size commercial
panels, and everything in between.
Systems for unique panel formats, multi-junction architectures, specialized optics, or challenging environments.
See problems such as cell cracks, sealing failures, and bill of material (BOM) variations.
“
Kate Fisher
Co-Founder SunFlex Solar
We’ll build your imaging setup to match your failure modes, down to the junction
| Factor | EL | PL | UVF |
|---|---|---|---|
| Noncontact – no need to bias cells/panels | No | Yes | Yes |
| High Throughput | No | No | Yes |
| New Panels | Yes | Yes | No |
| See cracks | Yes | Yes | Yes |
| See disconnected cell segments | Yes | No | No |
| Tell “when” cracking happened | No | Yes | No |
| See cold solder or weld joints | Yes | No | No |
| See gridline corrosion | Yes | Yes | Yes |
| See hot spots | No | No | Yes |
| See edge seal and junction box seal failure | No | No | Yes |
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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