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 #:
00053
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 & Lo mb Optical C o m p a n y New Combined Balopticon with 1000-Watt Mazda Lamp Model CRM This new Balopticon is designed for the projection of opaque objects and lantern slides with instant interchange between the two forms. The instrument marks a new era in the projection of opaque objects on a large scale by reason of the adoption of an incandescent lamp as illuminant. It is the first apparatus of its kind upon the market and has proved remarkably popular from its introduction. This Combined Balopticon is fitted with a specially constructed, 1000-watt, gas-filled Mazda stereopticon lamp, which represents the highest development so far attained in this branch of illuminating engineering. Since, unlike the arc, the lamp is enclosed, it can be brought very close to the object without danger. By means of a mirror with very high optical corrections an unusually large percentage of the available spherical candle power is utilized. 50