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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 same plane.

What's a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is an effect generated from dispersion as a result of failure of a lens to focus all colours to the same convergence point. When white light passes through glass, then every wavelength element of this light is separated and concentrates at different points onto a plane. Chromatic aberration appear as "fringes" of color combined boundaries that separate bright and dark parts of the image, due to every color in the optical spectrum cannot be focused at one common point.

What is a spherical aberration?

Spherical aberration is an Optical effect which happens in a lens as a result of 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 functioning normally.

Achromatic double lenses

Achromatic doublet is your Most frequent type of achromat lens. Generally, it is composed of two individual lenses made from glasses with different amounts of dispersion.

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

Achromatic lenses may be Used to adjust the line of sight and concentrate laser beams. These lenses are widely 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. Take a look at aspheric lenses.