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What is an achromatic lens?

An achromatic lens or Achromat is a lens that's created for the purpose of restricting the effects of lens(chromatic and spherical) aberration. Achromatic lenses are adjusted to attract 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 due to the failure of a lens to focus all colors to the same convergence point. When white light passes through glass, every wavelength component of this light is separated and concentrates at several points onto a plane. Chromatic aberration seem as "fringes" of color along boundaries that separate dark and bright parts of the image, due to every color in the optical spectrum cannot 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 gain of refraction of light rays when it strikes the lens. The generated image will end in imperfection. Both this happening signifies that the lens is not working normally.

Achromatic double lenses

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

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

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