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 #:
00050
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
Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.

Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.

CH. I] MAGIC LANTERN WITH DIRECT CURRENT 35 slide seems to melt into the other, hence the name "dissolving views." This is brought about by a shutter gradually uncovering one objective and at the same time obscuring the other; or, as in the figure here shown (fig. 17), by the closing of the iris diaphragm of one objective while the other opens. FIG. 17. MULTIPLE LANTERN FOR DISSOLVING VIEWS. (Cut loaned by the Bausch & Lomb Optical Company). Each lantern must have its own arc lamp and rheostat. For dissolving one picture into another the iris diaphragm of one objective is opened gradually while the other is gradually closed. This is accomplished by pulling up or down on the rod connecting the two iris diaphragms in the objectives. Some lecture rooms are supplied with double lanterns, not so much for the dissolving effect, as for the rapid passage from one slide to another. In most cases the "push -through" carrier with a single lantern will accomplish this as effectively. § 46. Multiple lanterns for "effects." — Formerly certain "effects" or striking appearances were produced by the use of two or more lanterns which were in operation and projected their light