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In the UK, the refurbished electronics marketplace Back Market claims that "refurbished" devices are distinct from "used" devices, where a "used" device is one where no repairs or testing have taken place. [2] However other specialist retailers, like The Big Phone Store, define refurbished phones as a specific type of used or second-hand device ...
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.
50 inch fixed screen projector with two projector lenses with three tubes. 60 fL on screen brightness. KP-7200 [36] Sony: 1978: No : 480i : 50 [37] Analogue:
35mm filmstrip projectors; Overhead presentation projectors (all models) Stereo cameras and stereo slide projectors through its TDC subsidiary; Slide Cube Projector, circa 1970; In 1934, Bell & Howell introduced their first amateur 8mm movie projector, in 1935 the Filmo Straight Eight camera, and in 1936 the Double-Run Filmo 8.
A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens , but some newer types of projectors can project the image directly, by using lasers .
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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]
Simulation of a spinning zoopraxiscope An early projector and seats from a movie theater. The main precursor to the movie projector was the magic lantern.In its most common setup it had a concave mirror behind a light source to help direct as much light as possible through a painted glass picture slide and a lens, out of the lantern onto a screen.
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