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What's an achromatic lens?

An achromatic lens or Achromat is a lens that is created with the goal of limiting the effects of lens(chromatic and spherical) aberration. Achromatic lenses are adjusted to bring two wavelengths to focus in the exact same plane.

What's a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is an effect generated from dispersion due to the failure of a lens to focus all colours to the same convergence point. When white light passes through glass, every wavelength element of the light is separated and focuses at several points on a plane. Chromatic aberration seem as "fringes" of color along borders that separate bright and dark parts of the image, due to every colour in the optical spectrum cannot be concentrated at a single common point.

What is 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 generated image will end in imperfection. Both this phenomenon signifies that the lens is not functioning normally.

Achromatic double lenses

Achromatic doublet is your Most common type of achromat lens. Generally, it consists of two separate 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 one focal point.

Achromatic lenses may 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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