Apokromaattinen

Apokromaattinen refers to a type of lens or optical system that exhibits a high degree of chromatic correction. Chromatic aberration is a phenomenon where a lens refracts different colors of light to different focal points, resulting in color fringing and reduced image sharpness. An apokromaattinen lens is designed to correct for this aberration across three or more wavelengths of light, whereas a simpler achromattinen lens typically corrects for two wavelengths. This advanced correction significantly improves the color rendition and overall clarity of an image, particularly in applications like photography, microscopy, and telescopes. The design of apokromaattinen lenses often involves using multiple lens elements made from different types of glass, carefully arranged to minimize the residual chromatic errors. This complexity contributes to a higher manufacturing cost but yields superior optical performance.