. Elements of applied microscopy. A text-book for beginners. Microscopy. 156 ELEMENTS OF APPLIED MICROSCOPY. images of an object viewed through them (double re- fraction). The polariscope is an instrument for detecting the polarizing power or double refraction of bodies, and con- sists, in essence, of a pair of Nicol prisms, each of which is made by cutting a rhomb of calcite diagonally and cementing the halves together again, with a layer of. Fig. 57.—Diagram of a Nicol Prism. (After Clark.) Canada balsam between them. Through such a prism (Fig. 57) one of the rays of plane polarized light (E
. Elements of applied microscopy. A text-book for beginners. Microscopy. 156 ELEMENTS OF APPLIED MICROSCOPY. images of an object viewed through them (double re- fraction). The polariscope is an instrument for detecting the polarizing power or double refraction of bodies, and con- sists, in essence, of a pair of Nicol prisms, each of which is made by cutting a rhomb of calcite diagonally and cementing the halves together again, with a layer of. Fig. 57.—Diagram of a Nicol Prism. (After Clark.) Canada balsam between them. Through such a prism (Fig. 57) one of the rays of plane polarized light (EFGH), known as the extraordinary ray, passes unchanged, while the other (EFKL), the ordinary ray, is so strongly refracted in the first half of the prism that it meets the layer of balsam at such an angle as to be totally reflected from the balsam surface, and is thus re- moved. A Nicol prism is, then, a device for removing. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Winslow, C. -E. A. (Charles-Edward Amory), 1877-1957. New York, J. Wiley; London, Chapman & Hall
Size: 920px × 2716px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookautho, bookcentury1900, bookdecade1900, booksubjectmicroscopy
