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Acer America Corporation, headquartered in San Jose, California, is a member of the Acer Group. Acer's R&D, engineering, manufacturing, and marketing operations in the United States and Canada are handled by Acer America. The U.S. headquarters was opened with a staff of three in 1985, as Multitech Electronics USA, in Mountain View, California ...
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 .
A laser projector is a device that projects changing laser beams on a screen to create a moving image for entertainment or professional use. [1] It consists of a housing that contains lasers, mirrors , galvanometer scanners, and other optical components.
The first large-format slide projectors were built in the middle of the 20th century as background projectors for theaters and opera houses. From the early 50', the german Brand Reiche&Vogel was offering in a catalog a 2000w slide projector using 4.75"x 4.75" (12x12cm) slide or a scroller for film strip of the same size.
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.
Android TV has been used to power many types of devices, like smart TVs, smart projectors, set-top boxes and dongles. During Google I/O 2014, Google announced that Sony, Sharp, and TP Vision/Philips would release smart TVs with Android TV integrated in 2015. It was noted that support for handling TV-specific functions, such as input switching ...