Illustrated Catalogue Of Magic Lanterns (after November 1889, probably 1890)

Record Details:

Title:
Illustrated Catalogue Of Magic Lanterns
Date:
after November 1889, probably 1890
Publisher:
Chicago, Il: McIntosh Battery and Optical Company Co.
Volume:
Illustrated Catalogue Of Magic Lanterns
Leaf #:
00090
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:
Illustrated catalog of magic lanterns (sciopticons and stereopticons) and lantern slides of American producer and vendor McIntosh Battery & Optical Company in Chicago, Ills, US. Next to the apparatus, a description of its use is included in some sections, especially with respect to the working of light (Pages 1-92). Pages 93-240 are dedicated to lantern slide sets. Subjects covered by the lantern slides reach from instruction on electricity to geography, Christian religion, American History, fairy tales and more. To learn more about Magic Lanterns and Slides, visit the Lucerna Magic Lantern Web Resource at http://slides.uni-trier.de/ .
Date Added:
April 04, 2024
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MCINTOSH BATTERY AND OPTICAL CO., CHICAGO, ILL., U. S. A. 85 TO FOCUS THE LIGHT. When the lime begins to give out a brilliant white light, move it towards the condenser (if the mechanical jet is the one used, this is done by rod C,~) until the disk of light on the screen is evenly illumi- nated, as in Fig. F. Reference to the following cuts will enable the operator to locate the light to produce a perfect disk. When the disk resembles Fig. A, the light must be moved to the left; Fig. B , it must be moved to the right; Fig. C, the light must be lowered; Fig. D, it must be raised. If the disk is surrounded by a dark blue border, as in E , the light is too near the condenser, and must be moved back; if, on the contrary, this ring is of an orange hue, the light is too far from the condenser, and must be moved forward. Fig:. G. In this illustration the correct location of the light is shown at L ; all the rays fall within the area of the condenser. F represents the light located too far from the condenser, so that a portion of the rays