Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine, fully illustrated with plates and with over 400 text-figures (1914)

Record Details:

Title:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine, fully illustrated with plates and with over 400 text-figures
Date:
1914
Author:
Gage, Simon Henry, 1851-1946
Publisher:
Ithaca, N.Y. : Comstock Publishing Co.
Volume:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine, fully illustrated with plates and with over 400 text-figures
Leaf #:
000174
Language:
English
Format:
Books
Contributor:
Gerstein - University of Toronto
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Bibliography: p. 693-703
Date Added:
July 19, 2022
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CH. VI] HELIOSTATS FOR THE MAGIC LANTERN 159 FIG. 84. LENS AND PRISM HELIOSTAT OF ALFRED M. MAYER. (From the Catalogue of Optical Instruments by R. Fuess), The figure has been modified by extending the clock-shaft above and below. As here shown the instrument is suitable for any latitude. It uses a mirror instead of a second prism as in the original of Mayer (fig. 83). U Clock-work. N P, L° The clock-shaft extended to indicate the direction of the celestial north pole above, and below the angle of elevation corresponding to the latitude of the place where the instrument is used. P D Z Three divided scales; P for the latitude, D for the Sun's declination, Z for the time of day. S, k and Pr. The convex and the concave lens, and the prism as shown in fig 83. Sp Mirror to take the place of the prism (L) in fig. 83.