la, Zeitschnft fur Kryst. undMin. xxxn. 66, 545 (1900): Rend. Lincei (5) ix. [1] 196 (1900). 143-145] Uniaxal Prisnis 231 Referring the prism to rectangular axes, such that the axis of f is theedge of the prism and the plane of ff bisects its angle, we may regard asgiven the angle fi that the optic… … Fig. 36. Suppose lines and planes, parallel to those that we have to consider, to bedrawn through the centre of a sphere of unit radius, and let the coordinateaxes meet the surface of the sphere in the points f, ?/, f and let the opticaxis and the normal to the wave within the prism cut it in the…
Optics
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