Projection Apparatus (1917)

Page scan 000119 from Projection Apparatus

Record Details:

Title:
Projection Apparatus
Date:
1917
Publisher:
Rochester, N.Y: Bausch & Lomb Optical Co.
Volume:
Bausch & Lomb Optical Co. Projection Apparatus
Leaf #:
000119
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 Co m p a n y Vertical Attachments We provide several of these attachments for use with our different Balopticons. They afford a number of projection possibilities, permitting one to project large transparencies, liquids and other similar objects which must be placed in a hori- zontal position. The beam of light in each attachment is directed into a vertical course by a mirror placed at an angle of 45° within a dark chamber. A plano-convex con- densing lens is placed in a horizontal mounting on the top of this dark chamber. It serves as a stage upon which to work and focuses the light in the field of the vertical projection lens, which is carried upon an upright support or bed. A mirror above the projection lens directs the image toward the screen. The different attachments and the Balopticons for which they are designed are indicated in the price list below. Attachments for Projecting Opaque Objects The attachments for projecting opaque objects with the Models C and D Balopticons are listed herewith. These attachments are described and illustrated under the respective lanterns for which they are designed. 116