Image sensor

What is an Image Sensor?

An image sensor is a tiny helper inside many devices we use every day. It catches light and turns it into pictures we can see on screens. When you take a photo with a digital camera or snap a picture with a camera phone, the image sensor is working hard behind the scenes.

Image sensors are also in other tools, like optical mouse devices that help your computer know where you are pointing. They help doctors see inside the body and are used in machines that can spot faraway objects with radar or sonar.

How Do Image Sensors Work?

There are two main kinds of image sensors: the charge-coupled device (CCD) and the active-pixel sensor (CMOS sensor). Both of these tiny tools change light into tiny electric signals. These signals are then turned into the pictures we love to look at.

Why Are They Important?

Image sensors have changed how we see and share the world. Whether you are taking a picture, watching a video, or using a device that needs to see in the dark, an image sensor is there to help. They make it possible to capture and share moments from everywhere, every day.