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What's an achromatic lens?

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

What's a chromatic aberration?

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

What's a spherical aberration?

Spherical aberration is an Optical effect that happens in a lens due to the gain of refraction of light beams when it strikes the lens. The produced image will end in imperfection. Both this happening suggests that the lens is not working normally.

Achromatic double lenses

Achromatic doublet is the Most common type of achromat lens. Normally, it consists of two separate lenses made from glasses with various 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 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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