Lexic.us

Definition of Dark field illumination

1. Noun. A form of microscopic examination of living material by scattered light; specimens appear luminous against a dark background.

Medical Definition of Dark field illumination

1. Any method of illumination which illuminates the specimen but does not admit light directly to the objective. It may be by substage (dark field) condensers, by stagespot lighting, by special condensers fitted around special objectives for reflected illumination or by the slit ultramicroscope. (05 Aug 1998)

Lexicographical Neighbors of Dark Field Illumination

Literary usage of Dark field illumination

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

1. Elementary Chemical Microscopy by Emile Monnin Chamot (1921)
"Dark-field Illumination as opposed to bright-field illumination discussed above under sections a and b, is usually obtained by sending oblique light rays ..."

2. Journal of the Royal Microscopical Society by Royal Microscopical Society, London (1882)
"... —Dark-field Illumination by the Bull's-eye Condenser. [Note as to an intended alteration in the printing of their Reports.] North. ..."

3. The Encyclopaedia Britannica: “a” Dictionary of Arts, Sciences, Literature edited by Hugh Chisholm (1911)
"dark field illumination.—As was seen when discussing the physical theory, ... In dark field illumination care has to be taken that no direct rays reach the ..."

4. The Principles of Bacteriology: A Practical Manual for Students and Physicians by Alexander Crever Abbott (1921)
"... Characters of a Culture—Methods by Which the Various Biologic and Chemical Characters of a Culture may be Ascertained—dark field illumination—Facts ..."

5. Applied and Economic Botany: Especially Adapted for the Use of Students in by Henry Kraemer (1914)
"The Origin and Nature of Color in Plants," Kraemer, in Proc. Am. Phil. Soc., 1904. p. 259.) dark field illumination AND THE ULTRA-MICROSCOPE. ..."

6. Applied and Economic Botany for Students in Technical and Agricultural by Henry Kraemer (1916)
"The Origin and Nature of Color in Plants," Kraemer, in Proc. Am. Phil. Soc., 1904, p. 259.) dark field illumination AND THE ULTRA-MICROSCOPE. ..."

7. Syphilis by Loyd Oscar Thompson (1920)
"Dark-field Illumination.—This method of procedure is without question by far the ... The apparatus for dark-field illumination consists of (a) a special ..."

8. Practical Bacteriology, Blood Work and Animal Parasitology: Including by Edward Rhodes Stitt (1916)
"With low power objectives one can obtain satisfactory dark-field illumination by pasting a circle of black paper in the center of one of the glass discs ..."

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