UV spot curing lamp

Wed, 01 Jul 2026 16:37:31 +0800

On disinfection robots running in public spaces, cycle time is the bottleneck. If the UVC lamp can’t hit the required dose in one pass, you end up slowing the platform, stretching the dwell, or sending it back over the same area. Every one of those options eats into throughput and drains battery. We built a UVC spot curing lamp for compact, mobile disinfection heads because the goal is inactivation in seconds—not minutes. The key isn’t just output; it’s dose rate. We’re delivering a peak irradiance above 250 mW/cm² at the working distance, and that puts a germicidal dose over 40 mJ/cm² in under 0.2 seconds across the target area. The spectrum is centered at 254 nm from an ozone-free low-pressure mercury source. That wavelength lines up with the DNA/RNA absorption peak, so you get more photoproduct formation per millijoule. A dichroic-coated reflector keeps the beam collimated, which cuts spill and keeps intensity on the surface where it matters. In the field, that irradiance translates directly into robot performance. With more intensity, the robot can hold its programmed speed, shorten each pass, and still knock out pathogens. Single-cycle time drops—often by 30–50% compared with lower-irradiance options—because the required UVC dose is reached faster. The system also supports intelligent power matching: if the robot’s sensors see shadowing or a change in surface geometry, you can command the lamp to adjust exposure within the duty cycle, keeping disinfection consistent without stopping the run. Installation is straightforward, but the optics are fussy. Keep the quartz window clean and aligned. A fingerprint or a film of dust will scatter UVC and drop your effective dose. Make sure you’ve got thermal clearances in the robot head, too—this lamp runs hot, and the local airflow has to keep nearby electronics from cooking. Replace the lamp at the end of its rated life, typically 8,000–9,000 hours, before output decay starts to skew the dose budget.

Spot on UV Curing Area

UV spot curing lamp