ngen.. Zeitshrift fur Instrumentenkunde, 24, pp. i, 33, 97; 1904. TiUyerl ShultzA Axial Aberrations of Lenses 353 the ray through the center of the lens, then a and h will be thedistances from the center of the plates A and B to the intersec-tions of the ray R with the plates. The position F will… … Fig. 7.—Diagrammatic sketch of methods point from M, then the spherical aberration for the zone at adistance, h, from the lens axis is AFh = Fh — Fo- In Fig. 7 ti is the inclination of the refracted ray with the axisand a-\-b tan u = h from which sin u is easily determined. Hence, -^ for each zone…
Lenses and optical systems
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