Lexic.us

Definition of Anastigmatic

1. Adjective. Pertaining to a lens or lens system free of astigmatism (able to form point images).

Definition of Anastigmatic

1. a. Not astigmatic; -- said esp. of a lens system which consists of a converging lens and a diverging lens of equal and opposite astigmatism but different focal lengths, and sensibly free from astigmatism.

Definition of Anastigmatic

1. Adjective. (context: of the eye or a lens system) Free from astigmatism ¹

¹ Source: wiktionary.com

Definition of Anastigmatic

1. [adj]

Medical Definition of Anastigmatic

1. Not astigmatic. (05 Mar 2000)

Lexicographical Neighbors of Anastigmatic

Literary usage of Anastigmatic

Below you will find example usage of this term as found in modern and/or classical literature:

1. Optics for Photographers by Hans Harting (1918)
"It is the consequence of a general law announced by Petzval in 1843, according to which anastigmatic flattening of field is present when the sum - + -- h . ..."

2. Jena Glass and Its Scientific and Industrial Applications: And Its by Heinrich Hovestadt (1902)
"In one doublet the greater index is assigned to the positive, and in the other to the negative lens, thus rendering anastigmatic and spherical correction ..."

3. The Encyclopaedia Britannica: “a” Dictionary of Arts, Sciences, Literature edited by Hugh Chisholm (1911)
"172) this lens was an application of two principles recognized by Dr A. Steinheil as necessary for the spherical and anastigmatic correction of a lens. ..."

4. Photographic Surveying, Including the Elements of Descriptive Geometry and by E Deville, Édouard Gaston Daniel Deville (1895)
"The advantages resulting from the anastigmatic flatness of field greatly extend the range of the applicability of these lenses. The advantage of being able ..."

5. Contributions to Photographic Optics by Otto Lummer (1900)
"Then if one were to reverse one of these members and cement them together, one would so obtain the anastigmatic simple objective designed by ..."

6. The American Amateur Photographer (1904)
"How TO RECOGNIZE A LENS THAT is anastigmatic.—It is well known that an anastigmatic lens may by careless handling be so decentred as to lose that valuable ..."

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