Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine (1914)

Record Details:

Title:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine
Date:
1914
Author:
Gage, Simon Henry, 1851-1944
Publisher:
Ithaca, N.Y. : Comstock Publishing Company
Volume:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine
Leaf #:
000359
Language:
English
Subjects:
Lantern projection, Motion picture projection
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Bibliography: p. 693-703
Date Added:
July 19, 2022
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344 Substage Condenser DRAWING WITH HOUSE CURRENT [Cn. X FIG. 192. DIAGRAM OF THE MICROSCOPE ARRANGED FOR DRAWING ON A HORIZONTAL SURFACE. The light is from an arc lamp supplied by the house current (fig. 188, 189). A right-angled prism is used to reflect the rays down upon the drawing surface. The designations are self explanatory except in the ocular r i means the real image formed by the objective and field lens (see fig. 207). The adjustment screw heads at the side of the microscope are: / a Fine adjustment. c a Coarse adjustment. H The handle in the pillar for carrying the microscope. (3) From the difficulty of getting the small lamp and condenser in the optic axis without the use of an optical bench it has been found much easier to get the light upon the specimen and through the microscope by placing the arc lamp and its condenser at right angles to the microscope, and to use the regular microscope mirror for reflecting the beam through the substage condenser (fig. 193). If the substage condenser is not used, the mirror reflects the beam directly on the specimen, as for low power projection.