What does achromatic lens mean?
Definitions for achromatic lens
achro·matic lens
This dictionary definitions page includes all the possible meanings, example usage and translations of the word achromatic lens.
Princeton's WordNet
achromatic lensnoun
a compound lens system that forms an image free from chromatic aberration
Wiktionary
achromatic lensnoun
A lens generally composed of two separate lenses, one convex and one concave and generally of different materials, in such a way that the chromatic aberration produced by one is corrected by the other.
Wikipedia
Achromatic lens
An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths (typically red and blue) into focus on the same plane. Wavelengths in between these two then have better focus error than could be obtained with a simple lens. The most common type of achromat is the achromatic doublet, which is composed of two individual lenses made from glasses with different amounts of dispersion. Typically, one element is a negative (concave) element made out of flint glass such as F2, which has relatively high dispersion, and the other is a positive (convex) element made of crown glass such as BK7, which has lower dispersion. The lens elements are mounted next to each other, often cemented together, and shaped so that the chromatic aberration of one is counterbalanced by that of the other. In the most common type (shown), the positive power of the crown lens element is not quite equalled by the negative power of the flint lens element. Together they form a weak positive lens that will bring two different wavelengths of light to a common focus. Negative doublets, in which the negative-power element predominates, are also made.
ChatGPT
achromatic lens
An achromatic lens, also known as an achromat, is a lens that is specially designed to limit the effects of chromatic and spherical aberration. Chromatic aberration is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point, while spherical aberration is a distortion that occurs due to the increased refraction of light rays that occurs when rays strike a lens near its edge. The achromatic lens is typically composed of two or more lenses, usually made from different types of glass, with differing indices of refraction. By combining these lenses, different wavelengths of light can be focused on the same plane. This corrects the distortion problem and results in a clearer and more focused image. Achromatic lenses are most commonly used in devices such as cameras, microscopes, and telescopes.
Wikidata
Achromatic lens
An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected to bring two wavelengths into focus in the same plane. The most common type of achromat is the achromatic doublet, which is composed of two individual lenses made from glasses with different amounts of dispersion. Typically, one element is a negative element made out of flint glass such as F2, which has relatively high dispersion, and the other is a positive element made of crown glass such as BK7, which has lower dispersion. The lens elements are mounted next to each other, often cemented together, and shaped so that the chromatic aberration of one is counterbalanced by that of the other. In the most common type, the positive power of the crown lens element is not quite equalled by the negative power of the flint lens element. Together they form a weak positive lens that will bring two different wavelengths of light to a common focus. Negative doublets, in which the negative-power element predominates, are also made.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of achromatic lens in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of achromatic lens in Pythagorean Numerology is: 6
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"achromatic lens." Definitions.net. STANDS4 LLC, 2024. Web. 24 Apr. 2024. <https://www.definitions.net/definition/achromatic+lens>.
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