 | Mrs. Marcet (Jane Haldimand), Thomas P. Jones - Physics - 1826 - 286 pages
...the retina? Mrs. B. The microscope is constructed for this purpose. The single microscope (fig. 5.) consists simply of a convex lens, commonly called...which it is viewed: by this means, you are enabled to place your eye very near to the object, for the lens AB, by diminishing the divergence of the rays,... | |
 | 1832 - 650 pages
...which the object is placed, and through which it is viewed. By this means, you are enabled to faring your eye very near the object, for the lens AB, by...rays before they enter the pupil C, makes them fall paraUel on the crystalline humour D, by which they are refracted to a focus MI the retina, at R R.... | |
 | Physics - 1832 - 640 pages
...is constructed on this principle. The single microscope (fiç. 39) consists simply of a convex lens, in the focus of which the object is placed, and through...which it is viewed. By this means, you are enabled to bring your eye very near the object, for the lens AB, by diminishing the divergency of the rays before... | |
 | Physics - 1832 - 642 pages
...is constructed on this principle. The single microscope (ßg. 39) consists simply of a convex lens, in the focus of which the object is placed, and through which it is viewed. By thi* means, you are enabled to bring your eye very near the object, for the lens AB, by diminishing... | |
 | Light - Astronomy - 1838 - 298 pages
...compounds the varnish." The microscope is also a very remarkable instrument. The single microscope consists simply of a convex lens, commonly called...placed, and through which it is viewed : by this means we are able to bring the eye very near the object, and thus the latter is magnified by the lens. The... | |
 | Richard Green Parker - Physics - 1838 - 266 pages
...made to converge on the retina, where they form the inverted* image, f e. 644. A single microscope consists simply of a convex lens, commonly called...object is placed, and through which it is viewed. 645. By means of a microscope the rays of light from an object are caused to diverge less; so that... | |
 | Religious Tract Society (Great Britain) - Astronomy - 1840 - 444 pages
...compounds the varnish." The microscope is also a very remarkable instrument. The single microscope consists simply of a convex lens, commonly called...placed, and through which it is viewed : by this means we are able to bring the eye very near the object, and thus the latter is magnified by the lens. The... | |
 | Richard Green Parker - 1844 - 276 pages
...objects and those which are near. 644. A single microscope consists simply of a convex lens, commouly called a magnifying glass ; in the focus of which...object is placed, and through which it is viewed. G45. By means of a microscope the rays of light from an object are caused to diverge less; so that... | |
 | George Grant - Knowledge and learning - 1849 - 328 pages
...is constructed on this principle. The single microscope consists simply of a convex lens, in the Q focus of which the object is placed, and through which it is viewed. By this means you are enabled to bring your eye very near the object, for the lens, by diminishing the divergency of the rays before... | |
 | Richard Green Parker - Physics - 1849 - 418 pages
...near. 235. A single microscope consists simply of a convex lens, commonly called a magnifying-glass ; in the focus of which the object is placed, and through which it is viewed. 1. By means of a microscope the rays of light from an object are caused to diverge less ; so that when... | |
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The single microscope (fig. 4.), consists simply of a convex lens, commonly called a magnifying glass; in the focus of which the object is placed, and through which it is viewed : by this means, you are enabled to... 
