Crystal IS has reached 99% usable area in the 100mm diameter single-crystal aluminum nitride substrates that it is developing for UVC LED production, particularly in the 260 – 270nm germicidal range. The ultra-wide bandgap and high thermal conductivity of AlN is also applicable to RF and power devices. Its first 100mm AlN wafer was made in August last year, and ...
Silanna UV will launch a 235nm LED at ICFUST 2024, the International Congress on Far-UVC Science and Technology. SF1-3M1FWL1 is a 700mW input (30mA, 23.5V nominal) device that typically emits 3mW of UV radiation at that current. typical emission angle is 125°. Packaging is 6.8 x 6.8 x 1.38mm surface-mount. “This LED is effective for surface disinfection, air purification, medical ...
Hamamatsu Photonics has introduced a UV model of its ‘micro’ spectrometer series. C16767MA is sensitive across 190 to 440nm with a typical resolution of 5.5nm (FWHM, so ±2.25nm to 50%). Update: scroll down for how it works, probably Vital statistics are 20.1 x 12.5 x 10.1mm and 5g. “For example, C16767MA can be mounted in water quality monitors, analysing the ...
Osram and the University of Padua have been studying the effects of UV-C radiation from LEDs on SARS-CoV-2, the virus behind Covid-19. “It has already been shown that a high intensity of UV-C LED radiation can inactivate the SARS-CoV-2 virus rapidly,” according to the company. “In realistic applications, like upper air treatment or secondary air treatment devices [photos], the necessary dose to ...
Anglia Components has begun stocking UV-C ultra-violet LEDs from Bolb. “UV-C LEDs are gaining attention because they provide robust, toxic-free disinfection,” said Anglia marketing director John Bowman. “The addition of Bolb’s products to Anglia’s line up is an important step as we look to offer customers solutions for sterilisation that will play an important role in the post-Covid world.” Some ...
In tests conducted with Yamaguchi-University, Stanley Electric has achieved 99.9% ‘inactivation’ of Covid-19 virus SARS-CoV-2 using its aluminium nitride-based 265 nm UV-C leds. Inactivation here, said the company, is defined as the inability to multiply after exposure through damage to DNA and RNA. “10ml of virus solutions [5 x 105 PFU/ml] in dishes were irradiated with 265nm UVC LED at ...
Dow has introduced a solvent-less but sprayable silicone conformal coating that cures in seconds under UV light. Called Dowsil CC-8030, it is a one-part product that also includes moisture-cure for the nooks and crannies that UV cannot reach so well. “Other silicones support UV curing, but none are conformal coatings with a low enough viscosity for spray coating,” claimed Dow. CC-8030 is ...
CEL of Santa Clara has announced a family of deep ultra-violet (UV-C) leds for sterilisation and disinfection. The wavelength is 275nm, “which is a particularly effective wavelength in the UV-C spectrum at killing bacteria for sterilisation applications”, claimed the firm. Long working life is claimed – for example, the 3mW output version (25mA input) should exceed 10,000hours. CL7001C3 3mW CL7002C3 ...
A Bavarian consortium is developing aluminium nitride LEDs for disinfection – aiming for mass-production to replace mercury-containing lamps.
Vishay has introduced a 365nm wavelength leds in a 1.6 x 1.6 mm x 1.4mm surface-mount package, intending it to compete with mercury lamps in medical, industrial, and printing applications. Output of the InGaN VLMU1610-365-135 is typically 18mW at 20mA and 50mW at 60mA within 362.5 to 370nm. Life time is “up to 25,000h”, said the firm, which it attributes to the silicone ...
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