Pixelstørrelsen

Pixelstørrelsen, often referred to as pixel pitch, is a fundamental characteristic of digital displays and image sensors. It represents the physical distance between the centers of two adjacent pixels. This measurement is typically expressed in millimeters. A smaller pixel size means that more pixels are packed into a given area, leading to a higher pixel density.

Pixel density is commonly measured in pixels per inch (PPI) or dots per inch (DPI) for displays, and pixels per millimeter for image sensors. A higher pixel density generally results in sharper images with finer details, as the individual pixels are less noticeable to the human eye. For displays, this translates to a smoother viewing experience, especially at closer distances.

In the context of digital cameras and image sensors, pixel size affects the amount of light each pixel can capture. Larger pixels, while resulting in lower pixel density, can often perform better in low-light conditions because they have a greater surface area to gather photons. Conversely, smaller pixels can lead to increased noise in low light due to their limited light-gathering capability.

The optimal pixel size depends on the intended application. For high-resolution monitors, smaller pixel sizes contribute to a more immersive and detailed visual experience. For scientific imaging or specialized photography, the trade-off between pixel density and light sensitivity is a critical consideration. Understanding pixel size is crucial for evaluating display quality and the capabilities of imaging devices.