Usuario:NellieWheare11

What is an achromatic lens?

An achromatic lens or Achromat is a lens that is created for the purpose of limiting the effects of lens(chromatic and spherical) aberration. Achromatic lenses have been adjusted to bring two wavelengths to focus in the exact same plane.

What's a chromatic aberration?

Chromatic aberration, too Called chromatic distortion and spherochromatism, is an effect 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, every wavelength element of this light is separated and focuses at different points onto a plane. Chromatic aberration appear as "fringes" of color along boundaries that separate bright and dark parts of the image, due to every color in the optical spectrum cannot be concentrated at a single common point.

What is a spherical aberration?

Spherical aberration is an Optical effect which occurs in a lens due to the increase of refraction of light rays when it strikes the lens. The generated image will end in imperfection. Both this happening suggests that the lens isn't functioning normally.

Achromatic double lenses

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

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

Achromatic lenses can 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. Like [http://lensdesign018.hatenablog.com/entry/2017/10/16/183316 direction of cylindrical lens].