rack holding three slide projectors
Date: circa 1980
Inventory Number: 2004-1-0159a
Classification: Slide Projector
Subject:
Maker: Eastman Kodak Company (1881-present)
User: Edwin H. Land (1909 - 1991)
Maker: Chief Manufacturing Company (circa 1975-present)
Cultural Region:
Place of Origin:
Dimensions:
rack: 81.3 × 42.4 × 48 cm (32 × 16 11/16 × 18 7/8 in.)
projector with carousel: 16 × 26 × 28.3 cm (6 5/16 × 10 1/4 × 11 1/8 in.)
Accessories: power strip; carrousel (2), slides
DescriptionThree slide projectors numbered "3", "4" and "8". They are mounted on a specially designed and patented stacker. Two of the projectors contain slides in carousel for optical experiments. Number "3" slide projector is a Kodak Ektagraphic model AF-2. Number "4" and "8" are Kodak Ektagraphic model B-2AR slide projectors.
The projector model AF-2 was produced from 1971 to 1984. The projector model B-2AR was produced from 1979 to 1984.
There is also a power bar in the rack and various other attachments (such as shutters to block the light of one or more projectors), which are not original to the stacker.
The slide projectors stacker is model MS 3 3747, invented and produced by Chief Manufacturing Co. The patent for this invention was filed on 8 December 1977 (effective date 10 April 1979). The abstract reads thus: "A stacking stand for adjustably supporting at least one visual image projection device relative to a screen. The stacking stand comprises a support member and a support frame for carrying the projection device. The support frame is pivotably mounted on the support member by a ball and socket pivot joint located near the center of mass of the projection device. The pivot joint allows rotation of the support frame about pitch, roll and yaw axes. In addition, fastening means are provided for locking the support frame relative to the support member in various adjusted positions along the pitch, roll and yaw axes. Thus, an image projected by the projection device onto the screen may be superimposed with a target area on the screen by a rotary adjustment of the projection device along the pitch, roll and yaw axes."
[Found online here.]
The projector model AF-2 was produced from 1971 to 1984. The projector model B-2AR was produced from 1979 to 1984.
There is also a power bar in the rack and various other attachments (such as shutters to block the light of one or more projectors), which are not original to the stacker.
The slide projectors stacker is model MS 3 3747, invented and produced by Chief Manufacturing Co. The patent for this invention was filed on 8 December 1977 (effective date 10 April 1979). The abstract reads thus: "A stacking stand for adjustably supporting at least one visual image projection device relative to a screen. The stacking stand comprises a support member and a support frame for carrying the projection device. The support frame is pivotably mounted on the support member by a ball and socket pivot joint located near the center of mass of the projection device. The pivot joint allows rotation of the support frame about pitch, roll and yaw axes. In addition, fastening means are provided for locking the support frame relative to the support member in various adjusted positions along the pitch, roll and yaw axes. Thus, an image projected by the projection device onto the screen may be superimposed with a target area on the screen by a rotary adjustment of the projection device along the pitch, roll and yaw axes."
[Found online here.]
In Collection(s)
Signedon each projector: Kodak
on plaque, rack: Chief Manufacturing Company
on plaque, rack: Chief Manufacturing Company
FunctionUsed by Land for his experiments with color vision (Retinex theory). It was also most likely used in Land's famous lectures on the same topic.
ProvenanceThis object belonged to Edwin H. Land and came from the Rowland Institute, Harvard University. Gift of the Edwin H. Land Family.
