A laboratory course in experimental physics (1896)
Loudon, W. J. (William James), McLennan, John Cunningham, joint author · New York and London, Macmillan and Co. · leaf 77
iveeffects are, in general, not so, and that therefore by suitablycombining two prisms of different refracting angles, but hav-ing equal dispersive effects, we may produce refraction of whitelight without causing dispersion. It therefore follows, since bytaking radial sections of a lens we may shew… … Fig. 47. method of constructing achromatic combinations by unitinglenses made from different kinds of glass. A simple and instructive exercise in this connection is to testthe objectives of microscopes and telescopes for achromatismby allowing the light from a strongly illuminated pin-hole topass…
Physics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
