Projection Apparatus (1917)

Record Details:

Title:
Projection Apparatus
Date:
1917
Publisher:
Rochester, N.Y: Bausch & Lomb Optical Co.
Volume:
Bausch & Lomb Optical Co. Projection Apparatus
Leaf #:
00074
Language:
English
Collection:
Magic Lantern and Lantern Slide Catalog
Format:
Catalogs
Contributor:
Toverlantaarnmuseum Scheveningen (TOMU)
Sponsor:
A Million Pictures
Coordinator:
Media History Digital Library
Description:
This catalogue advertises various projection devices, for projection of transparent images and for the projection of opaque objects as well as film projectors. The technical workings of each apparatus are explained. The catalogue also lists projection lenses and light sources (electric light, carbon light, oxyhydrogen light), fuses, light bulbs, switches and microscopes for projection. The catalogue is richly illustrated.
Date Added:
March 28, 2024
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Bausch & Lomb Optical Company Figure 3—Convertible Balopticon in Position for Projection of Opaque Objects. The strong tension spring of the object holder will hold the pages of an open book or magazine flat against the opening in the bottom of the dark chamber, while convenient doors in the side of the chamber permit one to place smaller objects in position. Figure 4—Diagram Showing Path of Light for Opaque Projection: A = Arc; B = Rear Lenses of Condensing System; D = Opaque Object; E = Projection Lens for Opaque Objects; F = Mirror. 71