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What is an achromatic lens?

An achromatic lens or Achromat is a lens that is produced with the goal of limiting the effects of lens(chromatic and spherical) aberration. Achromatic lenses are 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 a result generated 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 element of this light is separated and concentrates at several points onto a plane. Chromatic aberration appear as "fringes" of color combined borders that separate dark and bright parts of the image, due to every color in the optical spectrum cannot be focused at one common point.

What's a spherical aberration?

Spherical aberration is an Optical effect which happens in a lens due to the gain of refraction of light beams when it strikes the lens. The generated image will result in imperfection. Both this happening signifies that the lens is not working normally.

Achromatic double lenses

Achromatic doublet is your Most common type of achromat lens. Generally, it is composed of 2 individual 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 into one focal point.

Achromatic lenses may be Used to correct 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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