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A carousel slide projector. The example pictured is a Kodak Carousel model 4400, dating from the mid-1980s. A carousel slide projector is a slide projector that uses a rotary tray to store slides, used to project slide photographs and to create slideshows. It was first patented on May 11, 1965, by David E. Hansen of Fairport, New York.
Carousel slide projectors have a circular magazine holding several slides. Stack-loader slide projectors [citation needed] Bell & Howell Slide Cube Projector had a cube-shaped magazine holding several slides. Dual slide projectors [citation needed] Single slide projectors project a single slide at a time, changed by the operator. [citation needed]
Sawyer's was the second-largest U.S. manufacturer of slide projectors in the early and mid-1960s, second only to Eastman Kodak, [18] which had introduced the Carousel slide projector in the early 1960s and patented it in 1965.
In contrast, a modern LCD or DLP projector often uses an Ultra-high-performance lamp which has a higher luminous efficacy and lasts for thousands of hours. [5] A drawback of that technology is the warm up time required for such lamps. Older overhead projectors used a tubular quartz bulb which was mounted above a bowl-shaped polished reflector.
Carousel slide projector; L. Large-format slide projector; S. Slide cube projector This page was last edited on 31 December 2018, at 21:46 (UTC) ...
The Slide Cube Projector is a slide projector and system, manufactured and marketed by Bell & Howell, which was introduced in 1970 and marketed through the 1980s.The projector derived its name from its transparent cubical plastic slide storage magazine, approximately 5.5 cm (2.2 in) in each dimension (a bit larger than a standard 135 film slide mount), that held 36 to 44 slides, depending on ...