Publisher's Synopsis
Excerpt from The Theory of Modern Optical Instruments: A Reference Book for Physicists, Manufacturers of Optical Instruments, and for Officers in the Army and Navy
29 Power. The Dioptre 30 Spectacle Nomenclature 31 Convergence 32 Power and Vergences for any Centred System of Spherical Surfaces. 33 Summary of the Results for a System referred to the Principal Points 34 Focal Point Vergence 35 Nodal Point Vergence 36 The Curvature Of the Translators' Appendix to Chapter III.
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