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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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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.
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