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What is an achromatic lens?

An achromatic lens or Achromat is a lens that's created with the goal of restricting the consequences of lens(chromatic and spherical) aberration. Achromatic lenses are adjusted to attract two wavelengths to concentrate 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 focuses 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 each colour in the optical spectrum can't be focused at a single common point.

What is a spherical aberration?

Spherical aberration is an Optical effect which occurs 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 isn't working normally.

Achromatic double lenses

Achromatic doublet is the Most frequent type of achromat lens. Generally, it is composed of 2 separate lenses made from glasses with various amounts of dispersion.

Achromatic lenses use two Different glass materials of distinct dispersion to refocus the individual wavelengths of light to a single focal point.

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

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