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What's an achromatic lens?

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

What is a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is a result generated from dispersion due to the failure of a lens to focus all colors to the same convergence point. When white light passes through glass, then every wavelength component of the light is separated and concentrates at several points onto a plane. Chromatic aberration appear as "fringes" of color combined boundaries that separate bright and dark parts of the image, due to each color in the optical spectrum can't be focused at one common point.

What is a spherical aberration?

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

Achromatic double lenses

Achromatic doublet is your Most common type of achromat lens. Normally, it consists of two individual lenses made from glasses with various amounts of dispersion.

Achromatic lenses utilize 2 Different glass substances of different dispersion to refocus the individual wavelengths of light into one focal point.

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

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