The microscope; an introduction to microscopic methods and to histology (1917)
Gage, Simon Henry, 1851-1944 · [Ithaca, N.Y.] The Comstock Pub. Co. · leaf 80
erstrongly refracting or reflectingqualities. The optical arrangements forthis form of illumination mustbe such that the object is lighted by a beam of light which cannot get into the objective either becausethe rays are so oblique, or because they are cut out before reachingthe eye. In either case… … Fig. 46. Oblique Light with aCondenser. (From Chamot). The iris diaphragm is opened com-pletely and the light from one side isblocked out by inserting the finger; thisgives unsymmetrical light and all of it isoblique to the optic axis. 68 DARK-GROUND ILLUMINATION [Ch. II § 118. Dark-ground…
Microscopy · Microscopy -- Technique
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