Beck, Conrad, 1864- · London, R. & J. Beck, Ltd. · leaf 15
thecomponent lenses. The distance between the foremost lensand the object is, therefore, always considerably less than thetrue focal distance. This is called the working distance to signifythe space between the end of the microscope and the objectwhen it is so adjusted that a clear picture is… … Fio. 3.—•/ = focal length ; w = working distance. A SIMPLE DESCEIPTION OF THEiMICROSCOPE 13 the formation of the images. An enlarged picture of an objectplaced upon the stage (D) is formed in the neighborhood ofthe eyepiece at U, and the eyepiece again magnifies this image,projecting the light into…
Microscopy
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