Abstract
The historic observation of double imaging by a highly birefringent crystal, such as that of calcite (see Chapter 1), can easily be repeated on an overhead projector. A small dot of black paper is pasted on the projector’s window near its center, then a cleavage rhombohedron of clear calcite is placed over the dot. Two images of the dot appear on the projection screen, which means that the incident beam is being divided into two beams that do not interfere with one another because they are vibrating in different (perpendicular) planes. When the calcite rhombohedron is rotated on whatever face it happens to rest, one image of the dot is stationary while the other image curiously traces a circle around the first image (see Figure 5.1). The fact that the so-called extraordinary image is displaced from the ordinary image means that the extraordinary ray travels at a different velocity than the ordinary ray. The fact that the extraordinary ray traces a circle rather than a spot confirms that the difference in velocities varies with the orientation of this crystalline species. The ordinary image is stationary because its velocity is constant with all orientations of the crystal, and accordingly the ordinary refractive index ω is constant. The various values for the refractive index in the path of the extraordinary ray can be given a general symbol, such as ε′, or specific symbols, such as εl, ε2 ε3, etc.
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References
1. Glossary of Microscopical Terms and Definitions,2d ed. (New York: NY Microscopical Society, 1989).
2. Compilation of ASTM Definitions (Philadelphia: 6th ed., American Society for Testing and Materials, 1986).
T. G. Rochow, Light Microscopical Resinography, vol. 47 ( Chicago: Microscope Publications [Division of McCrone Research Institute] 1983 ).
C. W. Mason, Handbook of Chemical Microscopy, 4th ed., vol. 1 ( New York: Wiley, 1983 ).
N. H. Hartshorne and A. Stuart, Crystals and the Polarising Microscope, 4th ed. ( New York: American Elsevier, 1970 ).
F. D. Bloss, An Introduction to the Methods of Optical Crystallography (New York: Holt, Rinehart, and Winston, 1961 ).
J. G. Delly, “Microscopy’s Color Key,” Industrial Research (Oct. 1973), 44–50.
E. M. Slayter, Optical Methods in Biology ( New York: Wiley, 1970 ).
N. H. Hartshorne, The Microscopy of Liquid Crystals ( Chicago: Microscope Publications, 1974 ).
T. G. Rochow and E. G. Rochow, Resinography ( New York: Plenum, 1976 ).
F. Ruch, “Physical Techniques in Biological Research,” in Cells and Tissues, G. Oster and A. W. Pallister, eds. ( New York: Pallister, eds. 1955 ), Vol. 3, 149–74.
H. S. Bennett, “The Microscopical Investigation of Biological Materials with Polarized Light,” in Handbook of Microscopical Techniques, 3d ed., R. M. Jones, ed. ( New York: Hafner Press, 1950 ), 591–677.
Carl Zeiss, Inc., 1 Zeiss Dr., Thornwood, NY 10594.
a. Leica, Inc., 24 Link Dr., Rockleigh, NJ 07647.
MICROPHOT-FXA,“ 1989, Nikon Instrument Group, 623 Stewart Ave., Garden City, NY 11530.
M. Abramowitz, “The Polarizing Microscope,” American Laboratory (June 1990), 72.
Olympus Corp., New Hyde Park, NY 11042.
Edwin Land’s Retinex Theory: An Important Contribution to Understanding Color Vision,“ In Focus 4 (fall/winter 1992 ), 8, 9, 15.
Method of Test for Determination of Birefringence in Fibers of Circular Cross Section by a Variable Compensator Technique,“ Index to Annual Book to ASTM Standards (Philadelphia: American Society for Testing and Materials).
R. B. McLaughlin, “Accessories for the Light Microscope” ( Chicago: Microscope Publications, 1975 ).
N. A. Crites et al,“Photoelastic Techniques,” Product Engineering 33, part 3 (Sept. 1962), 57–69.
R. C. Emmons in A. N. Winchell, Microscopic Characters of Inorganic Solid Substances (New York: Wiley, 1931 ), R. C. Emmons, “The Universal Stage” ( Boulder, CO: Geological Society of America, 1943 ).
ASTM designation E-211, “Specifications and Methods of Test for Cover Glasses and Glass Slides for Use in Microscopy,” Annual Index to ASTM Standards (Philadelphia: American Society for Testing and Materials, 1982, reviewed 1990 ).
W. C. McCrone, Fusion Methods in Chemical Microscopy ( New York: Wiley, 1957 ).
T. G. Rochow and R. J. Bates, “A Microscopical Automated Microdynamometer Microtension Tester,” ASTM Materials Research and Standards 12 (1972), 27–30.
T. G. Rochow and R. L. Gilbert, “Resinography,” in Protective and Decorative Coatings, J. J. Mattiello, ed., vol. 5 ( New York: Wiley, 1946 ).
J. G. Delly, “Photography through the Microscope” 9th ed., 2d printing ( Rochester, NY: Eastman Kodak, 1988 ).
26. Kodak techbits ® (Rochester, NY: Eastman Kodak), published three times a year (spring, summer, and fall).
M. Abramowitz, How to Improve Photography through the Microscope (New Hyde Park, NY: Olympus Corporation of America, 1988 ).
28. In Focus 3 (1991), Polaroid, Cambridge, MA, 02139.
R. P. Loveland, Photomicrography, vols. 1 and 2, 2d printing ( Malibar, FL: R. E. Kriger, 1985 ).
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Rochow, T.G., Tucker, P.A. (1994). Microscopy with Polarized Light. In: Introduction to Microscopy by Means of Light, Electrons, X Rays, or Acoustics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1513-9_5
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DOI: https://doi.org/10.1007/978-1-4899-1513-9_5
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