US 2025/0168518 A1 · EXPOSURE CONTROL USING LIQUID CRYSTAL DEVICE

Abstract

Disclosed is an imaging system including an image sensor with a plurality of photo-sensitive cells arranged on a photo-sensitive surface of the image sensor; a light valve device with an array of light valves, wherein the array of light valves is arranged on an optical path of the photo-sensitive surface of the image sensor; and at least one processor configured to: control an exposure of photo-sensitive cells of at least a first region in the photo-sensitive surface by utilising respective light valves of said array; read out image data from the photo-sensitive cells of the image sensor; and process the image data to generate an image.

Claims15

Dependent claims

An imaging system comprising:

an image sensor comprising a plurality of photo-sensitive cells arranged on a photo-sensitive surface of the image sensor;
a light valve device comprising an array of light valves, wherein the array of light valves is arranged on an optical path of the photo-sensitive surface of the image sensor;
and
at least one processor configured to:
control an exposure of photo-sensitive cells of at least a first region in the photo-sensitive surface by utilising respective light valves of said array;
read out image data from the photo-sensitive cells of the image sensor;
and
process the image data to generate an image.

5 more elements

A method implemented by an imaging system comprising an image sensor, a light valve device and at least one processor, the method incorporating exposure control using the light valve device, wherein the method comprises:

controlling an exposure of photo-sensitive cells of at least a first region in a photo-sensitive surface by utilising respective light valves of an array, wherein the photo-sensitive cells are arranged on the photo-sensitive surface of the image sensor, and the array of light valves of the light valve device is arranged on an optical path of the photo-sensitive surface of the image sensor;
reading out image data from the photo-sensitive cells of the image sensor;
and
processing the image data to generate an image.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

18/515,916Filed 21 Nov 2023

Published

22 May 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04N 23/741
Circuitry for compensating brightness variation in the scene: by increasing the dynamic range of the image compared to the dynamic range of the…
H04N 23/71
Circuitry for compensating brightness variation in the scene: circuitry for evaluating the brightness variation
H04N 23/73
Circuitry for compensating brightness variation in the scene: by influencing the exposure time
H04N 23/75
Circuitry for compensating brightness variation in the scene: by influencing optical camera components

Exposure control using liquid crystal device

Life of this patent

Exposure control using liquid crystal device

Life of this patent

Abstract

Claims15