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What is an achromatic lens?

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

What is 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 colors to the same convergence point. When white light passes through glass, each wavelength component of the light is separated and focuses at different points on a plane. Chromatic aberration appear as "fringes" of color combined 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 occurs in a lens as a result of gain of refraction of light rays when it strikes the lens. The produced image will result in imperfection. Both this happening suggests that the lens isn't working normally.

Achromatic double lenses

Achromatic doublet is your Most common type of achromat lens. Generally, it consists of 2 separate lenses made from glasses with different amounts of dispersion.

Achromatic lenses use 2 Different glass substances 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 concentrate laser beams. These lenses are commonly used in high quality digital imaging, surface inspection, and spectroscopy applications.

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