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What is 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 focus in the same plane.

What's a chromatic aberration?

Chromatic aberration, also Called chromatic distortion and spherochromatism, is an effect 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 every wavelength element of the light is separated and concentrates at several points onto a plane. Chromatic aberration seem as "fringes" of color along boundaries that separate dark and bright parts of the image, due to each colour in the optical spectrum can't be concentrated at one common point.

What's a spherical aberration?

Spherical aberration is an Optical effect that occurs in a lens as a result of increase of refraction of light rays when it strikes the lens. The generated image will end in imperfection. Both this happening signifies that the lens isn't working normally.

Achromatic double lenses

Achromatic doublet is your Most frequent type of achromat lens. Normally, it consists of 2 separate lenses made from glasses with various amounts of dispersion.

Achromatic lenses use 2 Different glass substances of distinct dispersion to refocus the individual wavelengths of light to one focal point.

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

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