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Crystal IS demos 160mW UVC LED

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Company claims new record for single chip device output

Crystal IS, a subsidiary of Asahi Kasei, has demonstrated a next-generation Klaran single chip UVC LED which emits at 160 mW in the germicidal range of 260-270 nm. Claimed to set a new record for single-chip device output in a commercial device, this marks a 60 percent increase over prior Crystal IS devices.

Crystal IS says this higher output device will be used to accelerate the adoption of UVC LEDs and hasten the widespread replacement of low-pressure mercury lamps. While the new device will retain the Klaran 3.5 mm x 3.5 mm package and solder pad design to allow backward compatibility with existing customer designs, the higher output will allow UVC LEDs to meet the performance and cost targets needed to expand into new applications in high-flow water and air treatment.

The new UVC LED design, built on Crystal IS' AlN substrate, uses a rigid fused silica lens and a thin layer of proprietary UVC transparent resin developed by Asahi Kasei to withstand the intense UVC output. In contrast to soft moulded lens, the rigid fused silica lens allows higher transmission of the UVC light which ensures stable long-life performance and high-temperature stability.

"This new high-output and long-life Klaran device is made possible by the strong cooperation between Crystal IS and Asahi Kasei innovation teams," said Eoin Connolly, president and CEO. "With this new device in our portfolio, Klaran UVC LED devices make another significant step forward in replacing low-pressure mercury lamp technology and promoting the transition to non-mercury/non-ozone generating devices."

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