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What's an achromatic lens?

An achromatic lens or Achromat is a lens that's created 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 the exact same plane.

What's a chromatic aberration?

Chromatic aberration, too 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 same convergence point. When white light passes through glass, then each wavelength element of this light is separated and focuses at different points on a plane. Chromatic aberration seem as "fringes" of color combined borders that separate dark and bright parts of the image, due to every colour in the optical spectrum cannot be concentrated at one common point.

What's a spherical aberration?

Spherical aberration is an Optical effect which occurs in a lens as a result of increase of refraction of light beams when it strikes the lens. The produced image will end in imperfection. Both this phenomenon suggests that the lens isn't working normally.

Achromatic double lenses

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

Achromatic lenses utilize 2 Different glass materials of distinct dispersion to refocus the individual wavelengths of light into one focal point.

Achromatic lenses can be Used to correct 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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