Sauzay, A. (Alexandre), 1804-1870 · London, S. Low, son, and Marston · leaf 256
es in C D a virtual image magnified anew. The lens placed near the object is called the object glass ; that placed near the eye the eye-piece. The magnifying power depends especially on the object glass. By using three lenses placed one over the other, the magnifying power is much increased. Thanks… … Fig. 54. — PROGRESS OF LUMINOUS RAYS. such an increase, for we must remember that to increase the diameter of an object one thousand eight hundred times, is to increase its surface three million two hundred and sixty thousand times ! Consequently, such great enlargements much diminish the…
Glass manufacture · Glassware
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
