375nm-415nm Semiconductor Laser
Yongli UV/A Near-Violet Series375nm-415nm: High-energy photons for fluorescence excitation and rapid curing. This band crosses near-UV(UV-A) and visible-violet boundaries and is beyond direct human perception. Yongli develops it for industrial inspection, forensics and advanced manufacturing. Fluorescence/traces: Near375nm, hidden biological traces fluoresce for forensic evidence; financial security uses it for counterfeit/document verification. Mineral exploration and artifact authentication reveal microscopic textures and compositional differences. NDT: In microelectronics/semiconductors, excited fluorescence in packaging/coatings reveals adhesive uniformity, bubbles and hidden cracks. Contactless, high-contrast inspection supports QC and yield. Curing/3D printing: Around405nm initiates polymerization in photosensitive resins/UV inks for chip bonding, FPC reinforcement and SLA/DLP printing, achieving millisecond curing, greater throughput and dimensional stability. Cold-source/high-efficiency properties support medical, hygiene and advanced industrial uses.
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