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 #:
000108
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 2—1000-Watt Gas-Filled Mazda Lamp. *On account of its size the 1000-watt lamp can only be used in the large, light-tight model lamp houses. Note: —We can supply 250 or 400-watt lamps with portion of globe silvered, if preferred, at $1.50 extra. The reflector and parts for attaching to any model B or C for use with clear globe may be secured at $1.50. Acetylene Lamp Acetylene is a convenient illuminant, as it is easily obtained or prepared and is portable. The illumination is sufficient for work at comparatively short distances. Our lamp has a powerful double jet, mounted in front of our patent, optical mirror of silvered glass, which concentrates and steadies the light, nearly doubling the illumination. For the best result obtainable with this lamp a 10-inch focus projection lens, of %6-inch diameter, giving 105