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.

公开(公告)号：US12019224B2

公开(公告)日：2024-06-25

申请号：US18473900

申请日：2023-09-25

Applicant: Google LLC

Inventor： Shan Fu Huang ,  Chen Cheng Lee ,  Tsung-Dar Cheng ,  Calvin Kyaw Wong

IPC: G02B13/06 ,  H04N23/698

CPC classification number: G02B13/06 ,  H04N23/698

Abstract: This document describes systems and techniques directed at an external wide-angle lens for imagers in electronic devices. An imager is disclosed that includes an image sensor and a lens stack, the lens stack including an external wide-angle lens, an internal lens, and four or more intermediate lenses. The imager has a first ratio of a projection at a vertex of the external wide-angle lens divided by a maximum focused dimension of the focal area being less than or equal to 0.15, a second ratio of a total length of the lens stack divided by the maximum focused dimension being less than or equal to 7.0, or a third ratio of a total transmission length of the imager divided by an entrance pupil diameter of the external wide-angle lens being between 1.2 and 2.6.

公开(公告)号：US20240012227A1

公开(公告)日：2024-01-11

申请号：US18473900

申请日：2023-09-25

Applicant: Google LLC

Inventor： Shan Fu Huang ,  Chen Cheng Lee ,  Tsung-Dar Cheng ,  Calvin Kyaw Wong

IPC: G02B13/06 ,  H04N23/698

CPC classification number: G02B13/06 ,  H04N23/698

Abstract: This document describes systems and techniques directed at an external wide-angle lens for imagers in electronic devices. An imager is disclosed that includes an image sensor and a lens stack, the lens stack including an external wide-angle lens, an internal lens, and four or more intermediate lenses. The imager has a first ratio of a projection at a vertex of the external wide-angle lens divided by a maximum focused dimension of the focal area being less than or equal to 0.15, a second ratio of a total length of the lens stack divided by the maximum focused dimension being less than or equal to 7.0, or a third ratio of a total transmission length of the imager divided by an entrance pupil diameter of the external wide-angle lens being between 1.2 and 2.6.