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UV LEDs are becoming attractive alternative for a growing list of applications

UV LEDs are becoming attractive alternative for a growing list of applications

By BizLED Bureau

January 30, 2015: Technological advancements in UV LED technology are leading to a whole new market segment as well as advanced level of products with better performance.

Laboratories are looking for smaller instruments that cost less than the bulky instruments at the same time deliver high performance. Design engineers are, therefore, taking note of the advanced UV LED technologies for these applications as they can significantly reduce cost, energy, and space as compared to alternate technologies. New and upper range UV LED (ultraviolet LEDs) sources are making designing of instruments for life sciences applications easier, reducing their size and cost. With new UV LEDs, these instruments are also becoming more productive and reliable.

Demand for UV LED-based instruments rising

With the increase in demand for instruments that are used in laboratories in the life science fields, instrument manufacturers are looking for alternative light sources like UV LEDs that can make instruments powerful to give fast, accurate and dependable measurements. With UV LEDs, manufacturers are making instruments much smaller in size, which even lowers the cost.

Applications of UV LEDs

Today, UV LED applications include:

230-400nm: Optical sensors and instrumentation

230-280nm: UV ID verification, barcodes

240-280nm: Sterilization of surface areas and water

250-405nm: Forensic and bodily fluid detection and analysis

270-300nm: Protein analysis, drug discovery

300-320nm: Medical light therapy

300-365nm: Polymer and ink printing

375-395nm: Counterfeit detection

390-410nm: Superficial/cosmetic sterilization

The UV LED-based instruments help researchers with more accurate measurements. When full spectrum measurements are needed, researchers can access the full spectrum UV-lamp-based instruments, which improve productivity.

Benefits of UV LEDs

UV LEDs deliver several environmental benefits which the alternative technologies fail to provide. UV LEDs consume about 70% less energy than compact florescent (CCFL) lamps. Moreover, UV LEDs are RoHS compliant and do not contain any toxic chemicals like mercury which is found in CCFL lamps. UV LEDs are also resistant to vibration and impact, as a result there is less chance of breakage, reducing maintenance cost.

Enhanced life span

Over the last few years, UV LED technology has advanced, and the challenge of insufficient life span which it faced has been resolved. UV rays easily break down the LED epoxy, lowering the life span of UV LEDs to less than 5,000 hours. But now with advancement in this technology, UV LED technology now features?hardened? or ?UV resistant? epoxy packages that provide life span of up to 10,000 hours. Further, UV LED technology was advanced and now its life span has been enhanced to 50,000 hours.

For example, in Lumex?s QuasarBrite UV LED technology, the epoxy lenses were replaced with TO-46 package with glass lens that enhanced the life span of UV LED to more than 50,000 hours. Performance The performance level of UV LEDs is greater than alternative technologies. UV LEDs can provide tight beam angle and uniform beam patterns.

With all these benefits compared to alternative technologies, UV LEDs are becoming an attractive alternative for a rapidly growing list of applications.

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