Pixel pitch refers to the distance between the center of one pixel and the center of an adjacent pixel, typically measured in micrometers (µm). In thermal cameras or displays, pixel pitch determines the spatial resolution and the level of detail captured or displayed. A smaller pixel pitch means that the pixels are closer together, allowing for higher resolution and more detailed images, as there are more pixels in a given area. In contrast, a larger pixel pitch means fewer pixels are packed into the same area, resulting in lower resolution and less detailed images. Pixel pitch is an important factor in both the image quality and the field of view of thermal cameras, with smaller pixel pitches generally providing better precision and clarity.