公开(公告)号：US20230070515A1

公开(公告)日：2023-03-09

申请号：US17467884

申请日：2021-09-07

Applicant: Apple Inc.

Inventor： Yifei Wang ,  Chih-Wei Chuang ,  Xiaoyang Zhang ,  Zhenbin Ge

IPC: G01S7/481 ,  G01S7/4912 ,  G01S17/04

Abstract: An electronic device may include a proximity sensor for detecting whether an external object is in the vicinity of the device. The proximity sensor may be implemented as an optical sensor module having a substrate, a light emitter die mounted on the substrate, a light detector die mounted on the substrate, and a package enclosure housing the light emitter and detector dies within the module. A infrared bandpass filter layer may be formed directly on the light detector die. The light detector die may have sidewalls at least partially covered by an opaque coating. The light detector die may include a highly doped backside reflection absorption layer interposed between an intrinsic absorption layer and an n-type layer within the light detector die. Opaque adhesive material may be used to mount the light detector die onto the surface of the substrate.

公开(公告)号：US10591645B2

公开(公告)日：2020-03-17

申请号：US15484888

申请日：2017-04-11

Applicant: Apple Inc.

Inventor： Zhenbin Ge ,  Xianwei Zhao ,  Wookyung Bae ,  Sunggu Kang ,  Ligang Wang ,  Avery P. Yuen ,  Stephen C. Cool ,  John Z. Zhong

IPC: G02B1/10 ,  G02B1/115 ,  G02B1/18 ,  G02B1/14 ,  G02B5/28

Abstract: An electronic device may have transparent members such as display cover layers and camera windows. A transparent member such as a sapphire member may be provided with an antireflection coating. The antireflection coating may have a stack of dielectric thin-film interference filter layers that form a thin-film interference filter that suppresses visible light reflections. The stack of dielectric thin-film interference filter layers may have thicknesses and materials that provide the thin-film interference filter and coating with low light reflection properties while enhancing scratch resistance. An adhesion layer may be used to help adhere the stack of thin-film interference filter layer to the transparent member. An antismudge coating such as a fluoropolymer coating may be used to reduce smudging. Graded layers and layers with elevated hardness values may be used in the coating.