Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 127
stem of prisms similar to t li.it originally devised by MM.Nachet, but made on a larger scale, between an erector1 (nsemblmg that used in the eye-piece of a day-telescope) and a pailof ordinary Huyghenian eye-piece,, the ,, tr<tl or dividing prismbeing placed at or near the plane of the… … Fig. 81.—Stephensons erectingbinocular. ABBES BINOCULAR EYE-PIECE 103 !Nachet binocular it makes in the pencils emerging from the objective.As all the image-forming rays have to pass through the two surfacesof four lenses and two prisms, besides sustaining two internal re-flexions in the latter, it…
Microscopy
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