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Definition of the noun achromatic lens
What does achromatic lens mean as a name of something?
- a compound lens system that forms an image free from chromatic aberration
Alternative definition of the noun achromatic lens
- [optics] 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.
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.
- also known as 消色差透鏡
- inventor: John Dollond
Printed dictionaries and other books with definitions for Achromatic lens
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by C. R. Kitchin
achromatic doublet See achromatic lens. achromatic lens A lens in which the chromatic aberration has been reduced compared with that to be expected from a simple lens. The first achromat was invented by Chester Moor Hall in 1733 and ...
Dictionary of Physics (2010)
by Sanjay Yadav
achromatic lens: 1. Syn. achromat. 2. A compound lens whose elements differ in refractive constant in order to minimize chromatic aberration. Simple achromatic doublets are formed by combining two lenses of different glass. To produce an ...
by Rolf H. J. Schlegel
bot achlorophyllous: A plant or leaf without chlorophyll bot achromat: A microscope objective corrected for axial chromatic aberration micr >>> achromatic lens achromatic: Parts of the nucleus not stainable by common chromosome dyes cyto ...
by Ronald G. Driggers
For example, the refractive and diffractive focal lengths that yield a 100-mm-focal- length achromatic lens in BK7 are /r= 105.3 mm and /d = 2.0 m, respectively. The elimination of a second lens material is an obvious advantage of the hybrid ...
by David Prakel
These are called achromatic elements and, depending on the quality of the lens, correct for two colours (an achromatic lens) or three colours (an apochromatic lens). Lateral CA is seen as colour fringes at the edges of an image, as shown in ...
by Armand Spitz, Frank Gaynor
achromat see ACHROMATIC LENs. achromatic lens A lens that has been substantially corrected for chromatic aberration ...
Mosby's Dictionary of Medicine, Nursing and Health Professions - Australian & New Zealand Edition (2009)
by Peter Harris, Sue Nagy, Nicholas Vardaxis
achromatic lens /ak' ramat'ik/ [Gk, a, without, chroma, colour; L, lens, lentil], a lens in which the focal lengths for red and blue colours of the spectrum are the same, acicular /asik'yala/ [L, ...
Firefly Astronomy Dictionary (2003)
by John Woodruff
ACHROMATIC LENS (ACHROMAT) -4 active optics The active optics actuators on the reverse of the primary mirror of the WIYN telescope at Kitt Peak National Observatory allow the mirror to be flexed continually to compensate for the effects ...
by Jasvinder Singh
Achromatic Lens : A lens free from chromatic aberration. This type of lens does not produce coloured fringes in the image. Usually a combination of crown and flint glass lenses cemented together, achromatic lens is used in optical instruments.
by John Daintith
See also compound lens, achromatic lens. 2. Any device for diverging or converging a beam. See electron lens. lens formula. Any equation describing the properties of a lens. The equation 1/V + 1/u = 1/f, relates the image distance (V), object ...
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Video about Achromatic lens
Achromatic lens Meaning
Video shows what achromatic lens means. A lens generally composed of two separate lenses, one convex and one concave and generally of different materials, ...
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