A shadow projector with no lens. Typically used a 1 kW, 2kW or 5kW lamp, and a slide about 24" square. [-]Still manufactured[/-] discontinued by Altman Cat. No. 673.
Slides were often made by painting glass with transparent Colorine lamp dip.
Details on the slide needed to be larger than the lamp filament to project clearly.
Link to most common type, the Kliegl 2048, using a 24"x24" slide. Link to the Kliegl 248, 28"x40" slide, using a 60V, 2100W lamp. The smaller, lower voltage filament produced a sharper image.
Attributed to German Inventor/lighting technician Adolf Linnebach, about 1900.
Slides were often made by painting glass with transparent Colorine lamp dip.
Details on the slide needed to be larger than the lamp filament to project clearly.
Link to most common type, the Kliegl 2048, using a 24"x24" slide. Link to the Kliegl 248, 28"x40" slide, using a 60V, 2100W lamp. The smaller, lower voltage filament produced a sharper image.
Attributed to German Inventor/lighting technician Adolf Linnebach, about 1900.
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