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What is an achromatic lens?

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

What's a chromatic aberration?

Chromatic aberration, also Called chromatic distortion and spherochromatism, is an effect caused 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 element of the light is separated and focuses at different points onto a plane. Chromatic aberration appear as "fringes" of color along borders that separate bright and dark parts of the image, due to every colour in the optical spectrum can't be focused 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 increase of refraction of light rays as soon as it strikes the lens. The produced image will result in imperfection. Both this phenomenon suggests that the lens isn't functioning normally.

Achromatic double lenses

Achromatic doublet is the Most common type of achromat lens. Normally, it consists of 2 separate lenses made from glasses with various amounts of dispersion.

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

Achromatic lenses can be Used to adjust 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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