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 #:
000314
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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CH. IX] PROJECTION MICROSCOPES ON THE MARKET 299 However, many opticians are coming to finish their apparatus in black, and all of them are ready to make modifications in their instruments which they are convinced will make them more effective and convenient for those who are to use them. But as many men have many minds it is not possible for the manufacturers to please every one in all particulars, hence the apparatus in the open market must represent a kind of average. While the authors realize the limitations mentioned above, it is a pleasure to be able to assert without reserve that the quality and design of the apparatus obtainable at the present time are excellent. ยง 434. As the projection microscopes most common in America are of German, English and home manufacture some examples are illustrated below. FIG. 163. LEITZ PROJECTION MICROSCOPE. (From Leitz Catalogue). 1 Arc lamp. 2 Condenser next the arc lamp. 3 Water-cell. 4 The lantern-slide holder. 5 Iris diaphragm. 6 Biconcave, illuminating lens to give the light the right angle before it enters the substage condenser. 7 Stage and substage condensers, on a revolver for use with different powers. 8 Projection objectives on a revolving nose-piece. 9 Projection oculars on a revolver. The enclosing curtain is turned over the top to uncover the parts. (See fig. 96 for the entire apparatus in its latest form, 1914).