公开(公告)号：US12212863B2

公开(公告)日：2025-01-28

申请号：US18370441

申请日：2023-09-20

Applicant: Phase One A/S

Inventor： Lau Nørgaard ,  Thomas Andersen

IPC: H04N25/532 ,  H04N25/78

Abstract: In global shutter image sensors, the light shields are often not completely lightproof and incoming light causes continued exposure even after the global shutter is shut. This ‘parasitic light’ degrades the recorded image. Disclosed is a method, performed by an imaging device with a global shutter image sensor, for recording an image with reduced degrading effects from parasitic light in the image sensor. The disclosed device and related method combine the global shutter functionality of the global shutter image sensor with a shutter such as a mechanical shutter. A precise synchronization of the closing of the shutter means that the shutter can block all incoming light—and thus stop parasitic light in the image sensor—shortly after the exposure is stopped by the global shutter image sensor. This allows the imaging device to record very short exposure images without the detrimental effects of parasitic light.