ACHROMATIC LENS Meaning and
Definition
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An achromatic lens is an optical component designed to minimize chromatic aberration, a phenomenon that causes color fringing and distortion in images formed by lenses. It consists of two or more lens elements made from different types of glass or other transparent materials, such as plastic. These elements are carefully arranged such that they possess different refractive indices and dispersions.
The primary purpose of an achromatic lens is to combine or focus light rays of different colors to a single point, minimizing the dispersion of light passing through it. By using materials with different dispersion properties, the lens effectively cancels out the chromatic aberration associated with the refraction of different wavelengths of light. This allows the lens to produce an image with reduced color fringing and improved clarity compared to a single-element lens.
Achromatic lenses are commonly used in a variety of optical devices, including cameras, microscopes, telescopes, and binoculars. They are particularly useful in situations where precise focusing and accurate color reproduction are crucial, such as in scientific research, medical imaging, and photography. However, it is important to note that while achromatic lenses significantly reduce chromatic aberration, they do not completely eliminate it. For applications requiring even higher levels of correction, manufacturers may employ apochromatic lenses, which use additional lens elements with even greater dispersion properties.
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A double lens, made of two kinds of glass with different chromatic qualities, so selected that one practically neutralizes the light dispersion of the other, without interfering with refraction.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for ACHROMATIC LENS
- zchromatic lens
- schromatic lens
- wchromatic lens
- qchromatic lens
- axhromatic lens
- avhromatic lens
- afhromatic lens
- adhromatic lens
- acgromatic lens
- acbromatic lens
- acnromatic lens
- acjromatic lens
- acuromatic lens
- acyromatic lens
- acheomatic lens
- achdomatic lens
- achfomatic lens
- achtomatic lens
- ach5omatic lens
Etymology of ACHROMATIC LENS
The word "achromatic" is derived from the Greek words "a-" meaning "without" or "not" and "chroma" meaning "color". It was coined by the German mathematician and physicist Friedrich Wilhelm Herschel in the early 19th century. Herschel used this term to describe a lens that could correct or eliminate chromatic aberration, which is the distortion of colors that occurs when light passes through a lens. The addition of an "a" prefix implies that the lens is "without color" or "colorless".
Similar spelling words for ACHROMATIC LENS
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