UV & IR Applications

Transparent Material Considerations for UV Optics in Horticultural Lighting Applications

Advancements in UV LED technology have begun changing the horticultural lighting landscape. Research is still ongoing to discover the extent of benefits and best practices of using UV light in horticulture. Using optics in tandem with UV LED light systems can help reach performance goals and optimize growing. Although there are several UV- transmitting materials available, not all are equivalent or able to meet the requirements for UV applications. Justine Galbraith, glass engineer, and Sharayah Follett, market development manager at Kopp Glass, Inc. discuss the performance considerations of various UV-transmitting materials and how application challenges are addressed by integrating optical elements. Read more »

Lextar Launches New UV LED Series for Sterilization and Curing

UV LED technology is regarded as a more efficient method of treating microorganisms in drinking water. This technology has been valued and included into drinking water treatment standard by NSF International last November for microbial reduction and provides a new test method to certify manufacturer claims. Read more »

Measuring the Oxygen Content of Blood with LEDs

Pulse oximetry is a non-invasive method for determining haemoglobin (Hb) saturation through oxygen in the blood and heart frequency. It uses the fact that oxygen-rich and oxygen-poor haemoglobin absorb red and infrared light differently. In order to measure the oxygen content reliably, LEDs with high performance, constant quality and low scattering are needed as light sources. With the WL-SMTW and WL-SITW series, Würth Elektronik has suitable red and infrared LEDs in its portfolio. In addition, there is a matching light sensor available: The phototransistor WL-STTW can reliably detect both red and infrared light. Read more »

New Stray Light Correction Method Enables UV Hazard Measurements with Array Spectroradiometer

A new stray light correction method implemented in the BTS2048 UV array spectroradiometer now enables applications previously only possible with double monochromator systems. This novel method was presented at the CIE's 29th quadrennial session. It combines Out-of-Range and In-Band stray light correction techniques, thereby greatly increasing the dynamic range of accurate UV measurements. Read more »

Nationstar Overall Layout in UV LED Market

In August 2018, Nationstar set up the Non-visual Light Source Business Division, focusing on IR LED, UV LED, animal and plant lighting. Nationstar has been fully laid out on UVA/UVB/UVC. Since 2016, Nationstar has launched near-ultraviolet LED, deep-ultraviolet LED and modules, with wide wavelength range, high reliability and good feedback in the market. At present, we have established partnerships with many well-known manufacturers. Read more »

Components | LEDs | UV-LEDs | Special Applications | Jun 24, 2019

Violumas improved output for their UVA 320– 410nm LEDs

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. Read more »

Featured | IR-LEDs | American Bright Optoelectronics | May 31, 2019

American Bright Optoelectronics Expands Its Family of IR Products to Cover Security, Remote Control, Appliance and Night Vision Applications

American Bright has introduced the most complete family of discrete infrared (IR) products in the industry, expanding its 20-year global leadership in the remote control and sensing markets. Product selection includes through-hole, surface mount (SMT) and PLCC variants of the industries’ most popular components. Read more »

SETi and Seoul Viosys - Advanced UV LED Technology for Horticultural Applications

Sensor Electronics Technology, Inc, (SETi), a division of Seoul Semiconductor and Seoul Viosys are showcasing the LED industry's first product line encompassing the entire UV spectrum from 225nm to 405nm, developed for a range of applications, including horticultural lighting to enhance plant growth cycles and control diseases at LIGHTFAIR International 2019, at the Philadelphia Convention Center in Philadelphia, PA. Read more »

Nichia Launches a 280nm Deep UV LED

Nichia Corporation is proud to introduce a new Deep UV LED, Part Number NCSU334A. Nichia has already had significant success over the years with UVA LEDs, specifically in convention resin curing applications. Nichia's new 280 nm UVC NCSU334A will be able to address mass market goals for water purification and air sterilization using Solid-State Lighting. With its small size (6.8x6.8 mm) and strong performance (55 mW typical optical power at 350 mA), the NCSU334A allows for system miniaturization and long-life solutions where previous technologies could not. Read more »

Components | LEDs | IR-LEDs | Special Applications | Apr 25, 2019

Luminus Adds Eleven High-Intensity IR LEDs

Luminus Devices has significantly expanded its portfolio of high-power infrared (IR) LEDs with eleven emitters designed to address the rapid expansion of automotive, consumer, machine vision, medical, and security applications. The Luminus IR SST LEDs are now offered in three wavelengths – 810nm, 850nm, and 940nm – and six beam angle options ranging from 40° to 130°. The high radiometric power output and low thermal resistance allow system designers to reduce the number of emitters and overall footprint for a broad range of infrared applications. Read more »

Lumileds Tailors Luxeon IR Family for Cost Conscious High Power Applications

Lumileds introduced the Luxeon IR 2720 Line, high power emitters that set the standard for abundant radiant power delivered in an industry standard package for seamless integration in existing designs. The emitters provide high radiant power of up to 1,300 mW at 940 nm or 1,250 mW at 850 nm wavelength and feature high efficacy and a popular 120° beam angle. The 2.75x2.0 mm LEDs are undomed and especially useful for applications with package height limitations that prevent the use of domed solutions. The emitters address a wide array of cost conscious infrared applications from surveillance and machine vision to iris scanning and health monitors. Read more »

White Papers | UV Measurement | Featured | Mar 20, 2019

WHITE PAPER: Measuring UVA & Violet LED Light Sources

As the development of new UV LED sources continues at an ever-growing pace, so do the industrial applications that utilize them. UV LEDs are being put to work in various industrial processes, medical applications, and disinfection solutions. Efficient utilization of the UV radiation requires good measurement tools. However, accurate light measurement in this spectral range presents challenges, such as how to accurately measure the irradiance if the wavelength of the light is not exactly known. Read more »

Tools | Database | Engineering | UV-LEDs | Mar 06, 2019

Kopp Glass Releases UV LED Product Database

Kopp Glass announces the release of a UV LED Product Database that enables users to easily evaluate and select the optimal UV LED for specific applications. With hundreds of UV LED's available, researching and comparing the various options is a tedious, time-consuming process. This database streamlines the selection process. The comprehensive resource contains over 700 UV LEDs from 29 different manufacturers—including products from industry leaders such as Seoul Viosys, LG Innotek and Rayvio. Read more »

New Mid-Power Ultraviolet Emitting Diode With Quartz Window from Vishay

Vishay Intertechnology, Inc. introduced a ceramic mid power ultraviolet (UVC) emitting diode for sterilization, sanitation, and purification applications. Featuring a quartz window, the Vishay Semiconductors VLMU35CM00-280-120 delivers an extremely long lifetime in a compact 3.5 mm by 3.5 mm by 1.2 mm surface-mount package. Read more »

Fast Production Test of UV-LEDs

Numerous applications, for example in the medical area or in material testing, are based on precisely specified UV radiation. For UV-B and UV-C emitters, the measurement of their spectrum between 325 nm down to 200 nm is generally only possible with extended measurement times due to their low radiant flux. As such, a condition for fast testing within production is high reliability in conjunction with high optical throughput of all participating system components. Within its well-established CAS-series of premium spectroradiometers over many years, Instrument Systems has developed a novel series-type CAS 140D-157. This new system measures precisely and reliably not only within the visible spectrum, but also in the UV. Coupled with a PTFE-coated integrating sphere, the system permits for fast 24/7 production tests of UV emitters to be run. Read more »

Successful Development of High-output Broadband LEDs Capable of Emitting Visible Light to Near-infrared Light

Ushio Opto Semiconductors, Inc., a wholly-owned subsidiary of Ushio Inc., has recently developed a broadband LED that produces the world’s maximum output of 160 mW over a wide bandwidth between 400 and 1000 nm, which covers the range from visible light to near-infrared light. From the 1st of December, Ushio Opto Semiconductors, Inc. started shipping samples from its new “Spectro Series” lineup as part of the “epitex series” LED brand and will exhibit Photonics West 2019 (The Moscone Center US San Francisco) which will be held on February from 5th to 7th. Read more »

Colloidal Quantum Dots Make LEDs Shine Bright in the Infrared

ICFO researchers report on the development of a colloidal quantum-dot light emitting diode with unprecedented quantum and power conversion efficiencies in the infrared range. The ideal optoelectronic semiconductor material should be a strong light emitter i.e. should emit light very efficiently upon optical excitation as well as be an efficient charge conductor to allow for electrical injection in devices. These two conditions when met can lead to highly efficient light emitting diodes as well as to solar cells with the possibility to approach the Shockley-Queisser limit. Until now the materials that have come close to meeting these conditions have been based on epitaxially-grown costly III-V semiconductors that cannot be monolithically integrated to CMOS electronics. Read more »

UV LED Technology for Emerging Applications in Agriculture

The Ultraviolet (UV) LED market has expanded five-fold in the past decade and is projected to grow to over $1 billion by 2025. A key trend expected to influence the market is the ability to expand into new applications, including agriculture. UV light, at proper frequency and dose, can increase the production of active substances in medicinal and traditional plants and it can also help maintain a healthy growing environment. But to fully take advantage of UV LEDs, some major re-design considerations are required. Terrance Berland, CEO of the Violet Defense Group, the parent company of Violet Gro, will explain which considerations these are; for instance, why it is crucial to incorporate the appropriate lens material. Read more »

Components | LEDs | Color LEDs | IR-LEDs | Oct 17, 2018

OMC's New 30° Beam Angle SMD LEDs for High-Intensity Applications

OMC, the pioneer in optoelectronics design & manufacture, has introduced a new range of narrow angle, surface-mount LEDs in a variety of package styles and all popular LED wavelengths. The new SMD emitter series features integrated lenses moulded into the package which provides a 30 degree output beam. Applications for visible wavelengths include signalling and indication, in which the beam needs to be visible over greater distances, while the company’s infrared wavelength versions are used for sensing and data-communication over greater distances and with higher precision than using standard, wide-angle SMD components. Read more »

Luminaires | Systems + Applications | Indoor Applications | UV-LEDs | Sep 21, 2018

Lighting Science Launches Cleanse™ Luminaire Retrofit LED Troffer that Sanitizes Air

Lighting Science announces the launch of a revolutionary new LED luminaire that reduces airborne pathogens responsible for numerous illnesses. Cleanse™ is an easy-to-install, air-sanitizing luminaire that decreases the levels of airborne particles, including microorganisms. The spread of illness is a health concern that is widely felt in healthcare, schools, gymnasiums and a multitude of public spaces. Read more »

Components | LEDs | IR-LEDs | Special Applications | Sep 05, 2018

DOWA Announces Short-Wavelength IR LEDs with the World’s Highest Output Power

DOWA Electronics Materials Co., Ltd., a subsidiary of DOWA Holdings Co., Ltd. , has successfully developed short-wavelength-infrared LED chips with output power that is 3.5 times higher than existing products and is the highest in the world at 6.8 mW [1], with a peak wavelength of 1,300 nm. DOWA has started to deliver sample products. Read more »

TT Electronics' Compact, Surface-Mount IR LED Emitter has Narrow FWH Angle

TT Electronics, a global provider of engineered electronics for performance critical applications, has introduced a compact, infrared LED emitter with the industry’s largest spot diameter of 7 mm for super-reliable optical sensing and position encoder applications. Read more »

LG Innotek Introduces "Visible Disinfection Lighting" Solution

LG Innotek today announced "Visible Disinfection Lighting", which is a functional light source that gives the effect of sterilization by sunlight with the indoor light. The LED realizes the effect of eco-friendly sterilization, that is, the method used to dry household goods and blankets under the sun, in indoor spaces conveniently and safely at any time. Read more »

New IR LED for Razor Sharp Images of CCTV Survillance Cameras

Osram Opto Semiconductors is expanding its proven Oslon Black portfolio for infrared illumination with the addition of an infrared LED with a narrower beam angle of ± 25°. Thanks to the new SFH 4718A IRED, illumination units for camera systems with a medium capture range no longer require secondary optics. The Oslon Black family now offers a wide selection for the most varied of infrared-based applications, taking in four power classes, three wavelengths and three beam angles. Read more »

LG Innotek Unveils Full Lineup of Horticulture LEDs

LG Innotek today announced that it set up a full lineup of “horticulture LEDs,” which are the light sources that can make plants grow faster than under the sunlight, and will venture into the global market. LG Innotek secured 30 types of horticulture LED packages optimized according to light wavelength and power consumption. In addition to visible light LEDs, the company also launched horticulture UV (ultraviolet) LEDs. Read more »

LG Innotek Launches UV LED Brand "InnoUV"

LG Innotek today revealed its plan to launch the high-end UV LED brand, “InnoUV.” The company plans to give the common name “InnoUV” to all of its UV LED products, apply a separately created brand logo design to them, and allow all finished products that use the company’s UV LED to use the logo. Read more »

Luminus Enters UV-C LED Disinfection and Sterilization Segment with Two 280 nm Emitters

Luminus Devices, Inc., has expanded its ultraviolet (UV) LED portfolio with two new 280 nm devices intended for the medical and health and well-being product segments. The standard footprint 3535 surface mount emitter is a 350 mA device with peak output up to 60 mW. The second ultra-compact emitter is 1.3 mm by 1.3 mm and only 0.85 mm tall; it delivers 3 mW at 20 mA and peak output of 11 mW at 100 mA. Read more »

Components | LEDs | IR-LEDs | Automotive | Apr 11, 2018

Osram Adds Six New High-Power Infrared LEDs to Its Oslon Black Family

Osram Opto Semiconductors is expanding its Oslon Black family for the infrared range with six new automotive IREDs. The 850 nm versions are intended for exterior applications such as night vision, pedestrian protection, pre-field recognition and lane detection. The new 940 nm versions are suitable above all for interior automotive applications such as driver monitoring, seat occupancy detection and gesture recognition. Thanks to different wavelengths and lenses these products cover a wide range of customer requirements and can be operated at up to 5 A in pulsed mode. Read more »

Resources | Projects | UV-Modules | UV-LEDs | Mar 15, 2018

“UV Power” Research Project Is Working on LED-Replacements for Conventional UV Light Sources

Since February 2017, a total of five research institutes and companies have been working on “UV Power”, a collaborative project funded by the German Federal Ministry of Education and Research (BMBF). The partners have made it their goal to provide high-power UV LEDs to cover a wide variety of applications. These LEDs will eventually replace conventional UV light sources, which often contain toxic mercury, in areas such as production, disinfection, the environment, life sciences and medicine. UV LEDs are also likely to open up new areas of application. Read more »

Components | LED Modules | UV-Modules | Special Applications | Feb 26, 2018

LG Innotek Introduces UV LED Module with Perfect Waterproof

LG Innotek today announced that it has supplied UV LED module for water purifiers to the famous Japanese purifier manufacturer for the past year and achieved the perfect quality of zero defect rate. The Japanese market is known to have very strict quality standards, but it has proved its great performance and quality by supplying about 50,000 modules without a single defect. Read more »