Primary microscopy and biology. A text book for the use of students in high schools, normal schools and academies (1890)
Schneider, Albert, 1863- [from old catalog] · Fairbury, Ill., The Blade printing office · leaf 21
1 Angles o and o1 are equal.And (2) Angles at Pare equal. Therefore (3) Triangles C a P and C b P are similar. Represent C1 b, one radius, by r1 and Ca the other radiusby r. Represent thickness of lens measured on the axis by t, 16 MICROSCOPY. and distance from optic center to surface by e. From 1,… … CONJUGATE FOCI. (38) Tbe relative distances of the conjugate foci can bedetermined when the refractive index and radii are known.Let x = refractive index and assume that the angles of inci-dence and refraction are so small that their ratios are thesame as the ratios of their sines. Then…
Microscopy · Biology
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