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What's an achromatic lens?

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

What's a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is an effect caused from dispersion due to the failure of a lens to focus all colors to the same convergence point. When white light passes through glass, then every wavelength element of the light is separated and focuses at different points on a plane. Chromatic aberration seem as "fringes" of color along borders that separate bright and dark parts of the image, due to each color in the optical spectrum can't be focused at one common point.

What is a spherical aberration?

Spherical aberration is an Optical effect that occurs in a lens due to the increase of refraction of light rays as soon as it strikes the lens. The produced image will end in imperfection. Both this phenomenon signifies that the lens isn't functioning normally.

Achromatic double lenses

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

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

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

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