Brewster, David, Sir, 1781-1868, Bache, A. D. (Alexander Dallas), 1806-1867 · Philadelphia : Lea and Blanchard · leaf 384
(91.) In the text, pages 57 and 58, the fact is stated that the rayswhich fall upon a spherical mirror, at a distance from the axis,are not converged to the same point, with those nearer to the axis.This is illustrated in the annexed figure, in which LM, LM are theextreme rays of a pencil diverging… … FF is the aberration in length, or longitudinal aberration, ofthe reflected pencil, and if from F a perpendicular to the axis bedrawn meeting the reflected ray MF in J, FI will be half theaberration in breadth, or lateral aberration of the same pencil. (92.) PRor. XXV. To determine the aberration…
Optics
Internet Archive · Getty Research Institute · Public Domain Mark 1.0. Free to use for anything.
