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What's an achromatic lens?

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

What is a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is a result 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, every wavelength component of this light is separated and concentrates at several points onto a plane. Chromatic aberration seem as "fringes" of color along borders that separate dark and bright parts of the image, due to every color in the optical spectrum can't be focused at a single 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 rays when it strikes the lens. The generated image will end in imperfection. Both this phenomenon suggests that the lens isn't functioning normally.

Achromatic double lenses

Achromatic doublet is your Most frequent 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 materials of different dispersion to refocus the individual wavelengths of light into a single focal point.

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

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