公开(公告)号：US20250097553A1

公开(公告)日：2025-03-20

申请号：US18565472

申请日：2022-08-01

Applicant: Google LLC

Inventor： Jingyu Huang ,  Liang Ching Tseng ,  Tsung-Dar Cheng ,  Alexander P. Wroblewski ,  Weifeng Pan ,  Warwick Ka Kui Wong

IPC: H04N23/52 ,  H04N23/55 ,  H04N23/57

Abstract: The present document describes a camera module with electrostatic discharge (ESD) protection. In particular, the camera module includes a lightning rod structure, which guides an ESD current to a safe location (e.g., system ground) when a lens retainer of the camera module is hit by an ESD spark. Due to the impact on camera focus tuning and the risk of audio rub and buzz, the lightning rod structure does not physically touch the lens retainer. As such, a gap separates the lightning rod structure from the lens retainer. When the lens retainer is stressed by an ESD spark, the gap is broken down and a conductive path is established to guide the ESD current to the safe location through the lightning rod structure. In this way, the ESD current flows along a controlled path instead of jumping to arbitrary locations, which protects nearby susceptible circuitry.