Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 458
The comj^act-ness is gained by causing thelight to pass back and forththrough total reflecting prisms,as in the figure. These reflec-tions also perform the functionof reinverting the image, sothat the real image which isformed at the focus of the eye-piece is erect. It will be seen, therefore, that… … The Zeiss binocular 400 IMAGE FORMATIOX A further advantage which is gained by the Zeiss binocular is due tothe fact tliat the two objectives are separated by a distance which isgreater than the distance between the eyes, so that the stereoscopiceffect is more prominent than with the unaided eye or…
Physics
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