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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 effects of lens(chromatic and spherical) aberration. Achromatic lenses are adjusted to attract two wavelengths to focus in precisely the same plane.

What's a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is a result 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, then every wavelength element of the light is separated and focuses at different points on a plane. Chromatic aberration seem as "fringes" of color along borders that separate dark and bright parts of the image, due to each colour in the optical spectrum cannot be focused at one common point.

What's a spherical aberration?

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

Achromatic double lenses

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

Achromatic lenses utilize two Different glass substances 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 concentrate laser beams. These lenses are commonly used in high quality digital imaging, surface inspection, and spectroscopy applications.

Shanghai Optics Specializes in manufacturing high precision custom Achromatic doublet lenses According to client's specifications. For further infos take a look at objective lens definition.