The Boston school compendium of natural and experimental philosophy .. (1837)
Parker, Richard Green, 1798-1869 · Boston : Marsh, Capen & Lyon · leaf 156
n are generally paint-ed with transparent colors, on glass slides, which are received intoan opening in the front of the lantern. The light from the lamp,in the lantern, passes through them, and carries the pictures, paint-ed on the slides, through the lenses, by means of which a magnifiedimage is… … the convex lens c, which is called the condensing lens, because itconcentrates a large quantity of light upon the object painted on the * A lens may be caused to magnify or to diminish an object. If the object beplaced at a distance from the focus of a Jens, and the image be formed in or nearthe…
Physics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
