"Achromatic" Quotes from Famous Books
 ... achromatic lens of superior quality, having a set of three stops; has two finders, one for vertical and one for horizontal exposures; and is also provided with two sockets for tripod screws, one for vertical and one for horizontal exposures. Fitted with improved rotary shutter, for snap-shots or time ...
— The Great Round World and What Is Going On In It, Vol. 1, No. 38, July 29, 1897 - A Weekly Magazine for Boys and Girls • Various
... ACHROMATIC TELESCOPES, with the New Vetzlar Eye-pieces, as exhibited at the Academy of Sciences in Paris. The Lenses of these Eye-pieces are so constructed that the rays of light fall nearly perpendicular to the surface of the various lenses, by which the aberration is completely removed; ...
— Notes and Queries, Number 192, July 2, 1853 • Various
... age of eighty, with delight and admiration. Those little lenses in their silver mountings, all ground and set and fashioned by his own hand, showed him the blood-globules, and the "pipes" of the teeth, which Purkinje and Retzius found with their achromatic microscopes a century later. We honor his skill and sagacity as they deserve; but a little trick of Mr. Dollond's, applied to the microscopic object-glass, has left all his achievements a mere matter of ...
— The Atlantic Monthly, Vol. I., No. 3, January 1858 - A Magazine of Literature, Art, and Politics • Various |
