Agency / Source: ams-OSRAM AG

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The ams OSRAM SFH 7018 Enables Improved Quality of Heart Rate and Blood Oxygen Measurements for Wearables - The SFH 7018 features a highly reflective QFN (Quad Flat No Leads) package for significantly increased light output - ams-OSRAM.com
The ams OSRAM SFH 7018 Enables Improved Quality of Heart Rate and Blood Oxygen Measurements for Wearables

 

PRZOOM - /newswire/ - Premstaetten, Austria, 2023/12/08 - The SFH 7018 features a highly reflective QFN (Quad Flat No Leads) package for significantly increased light output - ams-OSRAM.com. SIX: AMS; ISIN: AT0000A18XM4

   
 
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• The new SFH 7018 red/green/IR LED increases total radiant intensity by more than 40 percent over the previous generation product. The green emitter’s radiant intensity is more than 100 percent higher in one of the two versions of the product. Internal research shows that the SFH 7018 is one of the highest performing products on the market.
• Brighter LEDs in combination with two-cavity design enable higher accuracy for heart rate and blood oxygen saturation measurements.
• The compact form factor and the optimal LED spacing improve system performance and increase ease-of-integration into end-product designs.

ams OSRAM, a global leader in intelligent sensing and emitting, released a new multi-LED package which offers more than 40 percent higher radiant intensity than the previous generation product, resulting in higher accuracy PPG (photoplethysmography) measurements in smart watches, wristbands and other wearable devices.

The SFH 7018 features a highly reflective QFN (Quad Flat No Leads) package for significantly increased light output. In addition, an improved two-cavity design separates the green LED from the red LED and infrared (IR) LED: the spacing and optical isolation ensure that the light sources are optimally placed relative to their photodiodes and reduce interference between the green light (for heart rate measurements) and the red light and IR source (for blood oxygen saturation, or SpO2, measurements). Furthermore, the green chip does not cause the red and IR chips to fluoresce due to cross-excitation from the shorter wavelength.

The optimized form factor of the surface-mount QFN package just 0.6 mm high makes it easy to integrate the module into any type of wearable device. Despite its compact size, the SFH 7018 provides dual driving capability with optimized forward voltage headroom and reduced overall power consumption.

Dr. Sergey Kudaev, Senior Staff System Architect at ams OSRAM, said: ‘By using the new SFH 7018, manufacturers of wearable devices can dramatically improve the quality of the optical signals on which heart rate and blood oxygen measurements are based, making them more accurate and reliable in all operating conditions. The SFH 7018 can help to transform vital signs measurements into accurate and absolute determinations of heart rate, blood oxygen levels and even more advanced parameters, such as blood pressure.’

Higher radiant intensity increases the signal-to-noise ratio

The SFH 7018’s improvement in radiant intensity is dramatic: the red and IR LEDs are more than 40 percent brighter than in the existing SFH 7016, and the green LED in the SFH 7018A version of the product is 80 percent brighter, while in the SFH 7018B version, the green LED is more than twice as bright. The brightness of the SFH 7018 at each of the red, green and IR wavelengths also greatly exceeds that of today’s best-performing competing product.

Since all vital signs monitoring devices face the challenge to detect little modulations of already small light signals, the result of scattering and absorption in tissue (depending on various factors), the amount of light emitted by the LEDs strongly affects system performance. When more light is modulated by the blood flow and subsequently reaches the photodiode, signal quality improves, yielding higher accuracy and better repeatability of measurements. The SFH 7018 enables this superior performance by emitting more light into the body.

The SFH 7018 is available in two versions: SFH 7018A is optimized for low forward voltage at high currents, allowing for operation without a costly voltage booster. SFH 7018B is optimized for maximum radiant intensity.

About ams OSRAM

The ams OSRAM Group (ams-osram.com) is a global leader in intelligent sensors and emitters. By adding intelligence to light and passion to innovation, we enrich people’s lives.

With over 110 years of combined history, our core is defined by imagination, deep engineering expertise and the ability to provide global industrial capacity in sensor and light technologies. We create exciting innovations that enable our customers in the automotive, industrial, medical and consumer markets to maintain their competitive edge and drive innovation that meaningfully improves the quality of life in terms of health, safety and convenience, while reducing impact on the environment.

Our around 20,000 employees worldwide focus on innovation across sensing, illumination and visualization to make journeys safer, medical diagnosis more accurate and daily moments in communication a richer experience. Our work creates technology for breakthrough applications, which is reflected in over 15,000 patents granted and applied. Headquartered in Premstaetten/Graz (Austria) with a co-headquarters in Munich (Germany), the group achieved over EUR 4.8 billion revenues in 2022 and is listed as ams-OSRAM AG on the SIX Swiss Exchange.

 
 
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The ams OSRAM SFH 7018 Enables Improved Quality of Heart Rate and Blood Oxygen Measurements for Wearables

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ams OSRAM SFH 7018 |
Contact: Nina Olumi - ams-OSRAM.com 
+49 89 6213-3586 nina.olumi[.]ams-osram.com / press[.]ams-osram.com
 
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