The dispersion of white light into its constituent colors. The refractive index of blue light is higher than that of red light, resulting in a change of image size from one color to the other.
SPHERICAL VS. ASPHERIC LENSES
HOW THEY’RE USED IN IMAGING APPLICATIONS
Optical Lenses are often categorized by their shape. Two common surface shapes are spherical and aspherical. Each offers unique characteristics that make it suitable for different use cases.