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AssigneePhase One A/S
InventorsLau NØRGAARD, Thomas ANDERSEN
Estimating the term…
In global shutter image sensors, the light shields are often not completely lightproof and incoming light causes continued generation of charges in the shielded storage units even after the global shutter functionality has ended exposure, such as during the readout of the recorded image. 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 imaging 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 synchronisation 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.
An imaging device for recording images, the imaging device comprising a global shutter image sensor having an array of photoelectric conversion units and light-shielded storage units, imaging optics arranged for incoming light to form an image on the global shutter image sensor, a shutter having an open state in which it allows incoming light to reach the image sensor and a closed state in which it prevents incoming light to reach the image sensor, and a control system configured to synchronize the image sensor and the shutter, wherein the control system is configured to:
A method to be performed by a control system of an imaging device for recording images, the imaging device comprising a global shutter image sensor having an array of photoelectric conversion units and light-shielded storage units, imaging optics arranged for incoming light to form an image on the global shutter image sensor, a shutter having an open state in which it allows incoming light to reach the image sensor and a closed state in which it prevents incoming light to reach the image sensor, the method comprising:
Use of a shutter in an imaging device comprising a global shutter image sensor having an array of photoelectric conversion units and light-shielded storage units, imaging optics arranged for incoming light to form an image on the global shutter image sensor, and a control system, wherein the shutter has an open state in which it allows incoming light to reach the image sensor and a closed state in which it prevents incoming light to reach the image sensor and wherein the mechanical shutter is used to block incoming light from impinging on the global shutter image sensor during readout of the light-shielded storage units.
Dependencies are inferred from the claim text.