UV / IR
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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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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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.
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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.
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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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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.
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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.
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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.
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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.
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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.
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New Infrared LED from Osram for 2D Facial Recognition
Smartphones, tablets and the like can now be unlocked in very different ways: with a password, fingerprint scan or even an iris scan. 2D facial recognition is another method and involves illuminating the user’s face with an infrared light source and capturing the image with an IR camera. The system then compares the image with the images previously stored for the purposes of identification, focusing on characteristic two-dimensional features. If there is a match for the various data such as the width of the mouth, length of the nasal ridge and distance between the eyes then the device will be unlocked.
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Issue 63 | Challenges in UV Measurement
Over the past decade UV LEDs have emerged as a highly attractive alternative to conventional
UV emission sources. They are cost effective and energy efficient devices in a small housing.
These advantages allow new fields of applications and access to a larger group of users - even in
the consumer market, e.g. water purification. Dr. Tobias Roesener, Product Manager at Instrument
Systems, explains what makes accurate measurement of UV LEDs so complicated and what the
crucial requirements on the measurement equipment are. In addition, he discusses calibration
and stray light issues.
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Everlight Introduces the NIR-C19M Infrared LED Series for Iris Recognition
Everlight Electronics CO., LTD., a leading player in the global LED and optoelectronics industry, launches the NIR-C19M series with a wavelength of 810 nm which exert the clearest contrast effect to read the pattern of the iris. The recognition process is precise, quick and features excellent heat dissipation. This makes it perfectly suitable for iris recognition applications in security surveillance systems (access control) and portable handsets.
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Instrument Systems Presents New Product Portfolio for UV Measurement
Instrument Systems’ new UV measurement solution consists of a spectroradiometer from the proven CAS series as well as a series of integrating spheres specifically designed for UV sources. It measures samples with various radiation spectra in the UV-A, UV-B and UV-C range starting at 200 nm.
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Sights Set Right! Augmented and Virtual Reality Systems Use Infrared LEDs to “Know” Where the User is Looking
Osram’s compact IREDs provide the illumination needed by eye-tracking systems in headsets - Osram Opto Semiconductors is launching its smallest sidelooking infrared LED to date. The new SFH 4055 is based on the proven Firefly platform, used widely for LEDs in the visible spectrum. The new transmitter, which has a wavelength of 850 nm, is primarily targeted at eye-tracking systems in augmented and virtual reality headsets.
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OMC Launches New HP UV&IR LEDs, New Micro Series LEDs and New Proprietary Coloured LEDs
OMC, a pioneer in optoelectronics, will present a range of new LEDs at the Electronic Design Show. The new LEDs are a new range of surface-mount high-power ultra-violet and infra-red LED emitters, extremely compact LED emitters measuring just a fraction of a millimeter, and a series of brighter LED emitters than traditional coloured LEDs based on their proprietary Active Diffuser Technology™.
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