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What's an achromatic lens?

An achromatic lens or Achromat is a lens that is produced for the purpose of limiting the effects of lens(chromatic and spherical) aberration. Achromatic lenses are adjusted to attract two wavelengths to concentrate in precisely the same plane.

What is a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is a result 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, each wavelength element of the light is separated and focuses at several points on a plane. Chromatic aberration appear as "fringes" of color along boundaries that separate bright and dark parts of the image, due to every color in the optical spectrum can't be concentrated at a single common point.

What's a spherical aberration?

Spherical aberration is an Optical effect which happens in a lens as a result of increase of refraction of light beams as soon as it strikes the lens. The generated image will end in imperfection. Both this phenomenon suggests that the lens is not functioning normally.

Achromatic double lenses

Achromatic doublet is the Most frequent type of achromat lens. Generally, it is composed of two individual lenses made from glasses with various amounts of dispersion.

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

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

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