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What is an achromatic lens?

An achromatic lens or Achromat is a lens that's produced with the goal of limiting the effects of lens(chromatic and spherical) aberration. Achromatic lenses have been adjusted to attract two wavelengths to focus in the 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 colours to the identical convergence point. When white light passes through glass, each wavelength component of this light is separated and concentrates at different points onto a plane. Chromatic aberration appear as "fringes" of color combined boundaries that separate dark and bright parts of the image, due to every colour in the optical spectrum cannot be concentrated at one common point.

What's a spherical aberration?

Spherical aberration is an Optical effect which happens in a lens as a result of gain of refraction of light beams when 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 2 separate lenses made from glasses with different 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 focus laser beams. These lenses are commonly used in high quality digital imaging, surface inspection, and spectroscopy applications.

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