The achromatic doublet lens is used to minimize or eliminate chromatic aberration. Its achromatic design also helps to minimize spherical aberration. Compared with a single lens, an achromatic doublet ...

Charles Chevalier created an achromatic lens that could control both chromatic and spherical aberrations. However, this meant that the aperture at the front was quite small (f/16), taking the ...

Achromats are optical lenses designed to minimize chromatic aberration. Achromats are also known as achromatic lenses. Chromatic aberration is a type of optical distortion which occurs when a lens ...

Achromatic lenses and semi-plan lenses are used to improve the alignment of colors at the focal point in order to provide a clearer image. They differ in terms of glass type, cost, and index of ...

Because the design of these lenses are complete symmetrical, so they can be used by changing-over. The commonly used materials include crown glass and flint glass. Triplet Achromatic Lenses are ...