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What's 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 bring two wavelengths to concentrate in precisely the same plane.

What's a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is an effect caused from dispersion due to the failure of a lens to focus all colours to the identical convergence point. When white light passes through glass, every wavelength component of this light is separated and concentrates at several points on a plane. Chromatic aberration appear as "fringes" of color along boundaries that separate dark and bright 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 as a result of gain of refraction of light beams when it strikes the lens. The generated image will end in imperfection. Both this phenomenon suggests that the lens is not functioning normally.

Achromatic double lenses

Achromatic doublet is the Most common sort of achromat lens. Normally, it consists of two individual lenses made from glasses with different amounts of dispersion.

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

Achromatic lenses can 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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