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Improvements in these digital video projectors, and their subsequent increased availability and desirability, resulted in a drastic decline of CRT projector sales by the year 2009. As of 2012, very few (if any) new units are manufactured, though a number of installers do sell refurbished units, generally higher-end 8" and 9" models.
By 1961, slide projectors had become Sawyers' second-most-profitable product. [15] A new model introduced in 1963 was known as the Sawyer's Rotomatic and used upright circular trays, called Rototrays, to hold the slides (100 per tray). [16] Sales totaled $8.6 million in 1961 and $9.1 million in 1962.
The price asked for a double set without lenses asked in West-Germany in 1956 was 42,510.00 Marks, which at the rate of exchange at that time (4:1), related to $10,627.50 for the pair, or $5,313.75 per projector. [8] That price was higher than 35mm only projectors, but still reasonably low if compared to competitors like Bauer U2. [9]
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.
The projector uses a bright beam of light and a lens system to project the image to a much larger size. A front-projection television uses a projector that is separate from the screen and the projector is placed in front of the screen. The setup of a rear-projection television is in some ways similar to that of a traditional television.
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