Lumispot Tech has established itself as a forefront innovator in the laser technology sector. Leveraging its proprietary development of a new generation of high-uniformity, high-brightness fiber-coupled semiconductor lasers, alongside its precision optical schemes designed in-house, Lumispot Tech has successfully engineered a laser system capable of delivering large field-of-view, high uniformity, and high brightness for sustained operations. 

Application Scenarios of the Square Light Spot Laser

This product line represents Lumispot Tech's independently developed square-spot system, utilizing fiber-coupled semiconductor lasers as the light source. Incorporating high-precision control circuits and conveying the laser through optical fibers into an optical lens, it achieves a square-spot laser output at a fixed divergence angle.

Primarily, these products are tailored for the inspection of photovoltaic (PV) cell panels, specifically in the detection of light and dark cells. During the final inspection of cell panel assemblies, Electro-Luminescence (EL) electrical testing and Photo-Luminescence (PL) optical testing are conducted to grade the assemblies based on their luminous efficiency. Traditional linear PL methods fall short in differentiating between light and dark cells. However, with the square-spot system, a non-contact, efficient, and synchronous PL inspection of different areas within the cell assembly is possible. By analyzing the imaged panels, this system facilitates the distinction and selection of light and dark cells, thereby preventing the downgrade of products due to the low luminous efficiency of individual silicon cells.