UNDERSTANDING WHAT AN IMAGE SENSOR CHIP AND HOW IT WORKS
UNDERSTANDING WHAT AN IMAGE SENSOR CHIP AND HOW IT WORKS • Every digital camera features an image sensor chip at its heart. This chip is a solid state device that is using for capturing the light coming in through the lens to form an image. It is the equivalent of the film that was used in the camera that your grandfather or great grandfather used back in the day. • On the market, there are different cameras to choose from with differently-sized sensors. Each type of sensor has its own advantages and disadvantages, and therefore you need to take some time to evaluate the one you want to purchase to determine how it will benefit you. • Before you even start comparing different types of image sensor chips on the market, you need to know what an image sensor is. As stated earlier, it is a solid state device that is used for capturing the light that is needed to form an image. Although the process of manufacturing a sensor is well outside the scope of this feature, what happens is that the wafers of the silicon are used as the base for the integrated circuit.
UNDERSTANDING WHAT AN IMAGE SENSOR CHIP AND HOW IT WORKS • It is important to know that an image sensor chip is an analogue device. The charge is first converted into a signal, which is then amplified before being converted into a digital form. While an image may appear as a collection of different objects and colors, but at the very basic level, each pixel is simply assigned a number in order to be understood by a computer. You can confirm this by zooming into any digital image far enough. What you will see is that each pixel is simply a single-colored square. • Apart from being analogue, an image sensor chip is also colorblind. In order for it to be able to sense a different color, a mosaic of colored filters is placed over the sensor to match the heightened sensitivity of the human visual system. This means that every pixel only receives color information for either red, blue or green.
UNDERSTANDING WHAT AN IMAGE SENSOR CHIP AND HOW IT WORKS • For more information on an image sensor chip, visit our website at https://www.ovt.com/
UNDERSTANDING WHAT AN IMAGE SENSOR CHIP AND HOW IT WORKS