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.