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 #:
00036
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 Vertical Attachments An attachment that will be found of considerable value is the vertical attachment for the pro- jection of transparent objects held in a horizontal position, Figure 6. This attachment con- sists of a prism-shaped metal box with mirror which is attached to the fron£ of the slide carrier support. On the top of the box is a condens- er which serves as a stage upon which to place the objects to be projected. The lens used for lan- tern slide projection can be attached to the arm supported by the verti- cal rod, and a mirror attached to the hood of the lens directs the beam of light to the screen. This attachment will be found of parti- cular service in demonstrating var- ious phenomena in chemistry and Figure 6—Vertical Attachment for Model C Balopticon. physics, such as crystallization, lines of magnetic force, etc, Microscope Attachment Figure 7—Simple Microscope Attachment. Teachers of biology will find much use for the simple microscope attachment, Figure 7, by means of which prepared slides of plant sections, parts of insects, etc., may be projected upon the screen. This attachment fits on the front standard in the same flange carrying the projection lens. Any regular microscope objec- tive of a power not higher than 16 mm can be used on this attachment with satisfactory results. 33