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 #:
000203
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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1 88 PROJECTION OF IMAGES OF OPAQUE OBJECTS [Cn. VII direct a parallel beam, a converging or a diverging beam (see also Ch. XIII-XIV on radiants and lighting). If a condenser is used, its size must be adapted to the size of the object, that is, the diameter of the cylinder of light must be some FIG. 105. DIAGRAM SHOWING THE OPTICAL PARTS AND THE COURSE OF THE RAYS IN THE CONVERTIBLE BALOPTICON IN OPAQUE PROJECTION. (Cut loaned by the Bausch & Lomb Optical Co.). The lamp-house, radiant and first element of the condenser are so inclined upward that the light from the condenser falls directly upon the opaque object. A Upper carbon of the arc lamp furnishing the light. B First element of the condenser to render the diverging light parallel. The lens beyond the meniscus is double-convex instead of plano-convex as in fig. 3 D Position of the opaque object. Objects as large as 20 x 20 cm. (8x8 inches) can be illuminated and projected. E Large aperture projection objective in a vertical position. F Mirror beyond the objective to reflect the image to the screen and correct the inversion. C Mirror. It serves to increase the illumination of the opaque object by reflecting back upon it some of the scattered light. 6" Second element of the condenser for lantern-slide projection (fig. 3). // Projection objective for lantern slides. 0 Bellows. M Lathe bed on which slide the objective, etc.