Elements of natural philosophy (Volume 2-3) (1850)
Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 232
and To find theits image, let us suppose the deviation to be produced relat1ion bet^e.en ° J x x -L an object and its by a lens, so thin that its thickness may be neglected, image formed bywhich is the usual case in practice. The optical centre alens;<r, may be taken ,i . . ,» Fig. 39. as the… … /= F. ii F14- — W^V corresponding toan assumedradiant point. 224: NATURAL PHILOSOPHY. Section of tbe Let the object be a plane, perpendicular to the axis object assumed to Qf ^ ^ ^ section ^jj b(} & . ^ ^ p ^ q^ . be a right line; ° ^ the angle included between the axis of any oblique pen-cil…
Mechanics · Acoustics · Optics
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