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What is an achromatic lens?

An achromatic lens or Achromat is a lens that is produced for the purpose of limiting the effects of lens(chromatic and spherical) aberration. Achromatic lenses have been adjusted to bring two wavelengths to focus in precisely the exact same plane.

What is a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is a result generated from dispersion as a result of failure of a lens to focus all colors to the identical convergence point. When white light passes through glass, then each wavelength element of the light is separated and concentrates at different points on a plane. Chromatic aberration appear as "fringes" of color combined borders that separate dark and bright parts of the image, due to every color in the optical spectrum cannot be concentrated at one common point.

What's a spherical aberration?

Spherical aberration is an Optical effect which happens in a lens as a result of increase of refraction of light rays as soon as it strikes the lens. The produced image will result in imperfection. Both this happening signifies that the lens isn't functioning normally.

Achromatic double lenses

Achromatic doublet is the Most common type of achromat lens. Generally, it consists of 2 separate lenses made from glasses with various amounts of dispersion.

Achromatic lenses use two Different glass substances of distinct dispersion to refocus the individual wavelengths of light to one focal point.

Achromatic lenses may be Used to adjust the line of sight and focus laser beams. These lenses are commonly used in high quality digital imaging, surface inspection, and spectroscopy applications.

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