annual AirPods Shipment According to a report by Trendforce, it is expected to reach 85 million sets for 2022, thus an increase of 3.7% on a year-on-year basis. With the increase in demand, the suppliers of AirPods are also going to reap the benefits, the report said. The companies included in this list are expected to be SWIR LED chip suppliers epistar and dova; InGaAs Photodiode Suppliers dowa and II-VI/Finisher; and Module Assembler USI.
“The SWIR wavelength ranges from 1,050–2,500 nm, which includes the optical properties of compounds such as water, sugar and alcohol. While SWIR technologies mature slowly, and prices begin to reach viable levels, wearable Manufacturers are expected to officially integrate SWIR technologies into their products in 2H21″, the report said.
It also states that PPG-based (photoplethysmography-based) biosensing functions are going to be featured in upcoming wearables. These can expand on health measurement parameters such as heart rate and blood oxygen and allow the devices to also check hydration levels, blood glucose, blood alcohol and lipid levels.
The last part of the report was about AirPods 3’s in-ear detection system which was based on skin-detect sensor. TrendForce 2021 Infrared Sensing Market Trend – 3D Sensing, LiDAR, SWIR LED Report Says Via PPG Integration, the AirPods 3 “have an improved in-ear detection mechanism based on a skin-detect sensor that is equipped with four SWIR (short-wave infrared) LED chips, which have two different wavelengths, as well as There are also two InGaAs photodiodes.”
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