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During the 2004–2005 school year, the Bellevue School District made a push to buy Smart Boards for all classrooms, accompanied by Dell projectors which are mounted onto the ceiling. [13] In the 2016-17 school year the Bellevue School District decided to hand out Lenovo Yoga laptops known as the One-to-One Technology program.
A projection clock (also called ceiling clock) is an analogue or digital clock equipped with a projector that creates an enlarged image of the clock face or display on any surface usable as a projection screen, most often the ceiling. [1] The clock can be placed almost anywhere if only the projected image must be seen.
The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft (300 m) away and wherever possible set at the same level. The projector is normally set at 90°, although 71° 31' may be used, in relation to ...
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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Electric screens can be wall-mounted, ceiling-mounted or ceiling recessed. These are often larger screens, though electric screens are available for home theater use as well. Electric screens are similar to pull-down screens, but instead of the screen being pulled down manually, an electric motor raises and lowers the screen.
Heritage Woods Secondary School is a coeducational high school located in Port Moody, British Columbia.In 2007, Heritage Woods celebrated their first graduating class. As well, it was rated as one of the top 50 schools in British Columbia for 2007, 2008 and 2010 and top 30 in 2012 by the Fraser Institute.
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.
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