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What is an achromatic lens?

An achromatic lens or Achromat is a lens that is created with the goal of limiting the consequences of lens(chromatic and spherical) aberration. Achromatic lenses are adjusted to bring two wavelengths to concentrate in the exact same plane.

What's 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 colours to the same convergence point. When white light passes through glass, then each wavelength component of the light is separated and concentrates at several points onto a plane. Chromatic aberration appear as "fringes" of color along boundaries that separate dark and bright parts of the image, due to each color in the optical spectrum cannot be concentrated at a single common point.

What's a spherical aberration?

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

Achromatic double lenses

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

Achromatic lenses use 2 Different glass substances of different dispersion to refocus the individual wavelengths of light into a single focal point.

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

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