Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 481
d images, appears unde-fined and not clear. This effect is more increased because each col-ored image has its spherical aberration also. Chromatic aberrationalone would place the different colored images in regular successionbehind each other, but spherical aberration mixes these images ofdifferent… … Zentmayer—A Lecture on Lenses. 423 to find a -way to correct this evil. From the moment when Newtonunraveled the nature of solar light, proving that light is composedof rays of different refrangibility, our greatest philosophers andopticians have spent their time and skill in the attempt to…
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