slide projector, Stereo Vivid
Date: 1950-1955
Inventory Number: 2004-1-0164
Classification: Slide Projector
Subject:
Maker: Three Dimension Company (fl. 1940 - 1980)
Cultural Region:
Place of Origin:
Dimensions:
34 × 19 × 34 cm (13 3/8 × 7 1/2 × 13 3/8 in.)
Accessories: slide holder
Description:
This is a slide projector with two lenses that produced stereoscopic images. It used two 500-Watt lights, each controlled by a switch. The instrument is now stored in an old cardboard box, not original.
The machine is marked on one side: "PROJECT CHARLES 845 521"
The machine is marked on one side: "PROJECT CHARLES 845 521"
Signedon plaque: THREE DIMENSION COMPANY
FunctionUsed by Land for his experiments with color vision (Retinex theory).
Curatorial RemarksThis projector could have been associated with the Project Charles run by the U.S. Air Force in the early 1950s, which developed into SAGE, or the Semi-Automatic Ground Environment, an automated control system used by NORAD for collecting, tracking and intercepting enemy bomber aircraft from the late 1950s into the 1980s.
For more information, see the entry in Wikipedia.
For more information, see the entry in Wikipedia.
ProvenanceThis object belonged to Edwin H. Land and came from the Rowland Institute, Harvard University. Gift of the Edwin H. Land Family.
