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EE Times-India > Optoelectronics/Displays

Simple projection feature saves time, money

Posted: 29 Oct 2008     Print Version  Bookmark and Share

Keywords:lens shift  projector  audiovisual equipment 

In an ideal display environment, a projector would be perpendicular to and centred to the screen. This of course is not realistic because most of the time that would place the audience (or something else) between the projector and the screen. Both residential and commercial installers face such challenges when designing spaces using audiovisual equipment. One solution is the variable lens shift, or the ability of the lens in a projector to move vertically, horizontally and sometimes diagonally within the projector housing. Like digital keystone correction, lens shift allows a projector to be off-centre from the screen and yet able adjust the picture without having to tilt the projector housing.

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