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What is 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 focus in the same plane.

What's 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 colours to the identical convergence point. When white light passes through glass, then every wavelength element of this light is separated and focuses at several points on a plane. Chromatic aberration seem as "fringes" of color along borders that separate dark and bright parts of the image, due to each color in the optical spectrum can't be focused at one common point.

What's a spherical aberration?

Spherical aberration is an Optical effect which happens in a lens due to the increase of refraction of light rays when it strikes the lens. The produced image will result in imperfection. Both this phenomenon suggests that the lens is not functioning normally.

Achromatic double lenses

Achromatic doublet is your Most common type of achromat lens. Generally, it is composed of two separate lenses made from glasses with different amounts of dispersion.

Achromatic lenses utilize two Different glass substances of distinct dispersion to refocus the individual wavelengths of light into a single focal point.

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

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