Violumas launches improved line of UVA SMDs (mid and high power)

Violumas launches improved line of UVA SMDs (mid and high power)

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Violumas recently announced a 30% increase in optical output for all UVA SMDs. This increase can be attributed to their “Index Match” technology. The standard product line has a default radiant angle of 60°, and custom optics can be fitted for angles of 30°, 60°, 90°, 120°, and flat. Violumas first revealed its surface-mount-device (SMD) product lineup with a focus on thermal dissipation at RadTech 2018 in Chicago, Illinois.

Violumas’ unique 3-PAD SMD structure optimizes heat dissipation from chip to heat sink via specialized thermal pillar MCPCB. Violumas SMDs have thermal resistance of 0.9°C/W, which is the lowest on the market. Because Violumas’ SMDs exhibit exceptional thermal resistance, they can be driven at higher currents without experiencing dramatic thermal decay. In regular applications, this directly corresponds to increased reliability and life span. But interestingly, Violumas’ industry-leading thermal characteristics make their products ideal for high power applications with extreme wattage and cooling requirements, opening up the possibility for new applications and deployments.

Violumas has also updated the form factor of the Mid Power Series by reducing the footprint from 6.0mm x 6.0mm to 5.2mm x 5.2mm. The High Power Series increased in size from 7.0mm x 7.0mm to 7.2mm x 7.2mm for improved accuracy when placing the lens. The updated specifications are listed below:

MID POWER SERIES (VS5252C1L6):

This work was performed at University of British Columbia to develop a modular, energy-efficient, and spectrally tunable lighting system for photochemical experiments for simulating stratospheric, tropospheric and indoor light conditions.
This technical application note provides information on Violumas’ ultra-narrow beam lenses and their use in UV LED systems. It introduces the underlying optical principles, key performance considerations, and potential applications of Violumas’ ultra-narrow beam angle – the Viobeam Product. The document is intended to help users understand how these lenses can be used to achieve precise, focused UV illumination in demanding applications.
Although UV LEDs have a compact form factor, they generate a substantial amount of heat through a small surface area

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