The microscope : its construction and management : including technique, photo-micrography, and the past and future of the microscope (1893)
Heurck, Henri van, 1838-1909 · London : C. Lockwood ; New York : D. Van Nostrand Co. · leaf 28
point appear displaced. Application of prisms as reflectors.—Prisms used for this purpose are cutin the shape of a right-angled isoscelestriangle as ABC (fig. 8). Consider anincident ray EF parallel to AC: theangle E F B will be equal to A C F,and like it an angle of 45 °; now thecritical angle of… … Of Lenses and their properties.
Microscopy
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