Among the possible new technologies to be incorporated in this year’s refresh of the iPhone series, 3D sensing has generated a lot of interests in terms of applications. A 3D sensing solution requires an RGB camera module an infrared (IR) sensor module that uses VCSEL (vertical-cavity surface-emitting laser) as a light source. With more high-end smartphones adopt 3D sensing, TrendForce estimates that the worldwide market scale of IR sensor modules for mobile devices will reach US$145 million in 2017.