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What's an achromatic lens?

An achromatic lens or Achromat is a lens that's created with the goal of limiting 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, also Called chromatic distortion and spherochromatism, is a result generated from dispersion as a result of failure of a lens to focus all colours to the identical convergence point. When white light passes through glass, every wavelength element of this light is separated and concentrates at different 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 occurs in a lens as a result of increase of refraction of light beams as soon as it strikes the lens. The produced image will result in imperfection. Both this happening suggests that the lens is not working normally.

Achromatic double lenses

Achromatic doublet is the Most common sort of achromat lens. Normally, it consists 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 into a single focal point.

Achromatic lenses may 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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