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==Brief history==
The light valve was originally developed at [[Stanford University]], in California, by electrical engineering professor David M. Bloom, along with Raj Apte, [[Francisco Sandejas]], and Olav Solgaard. In 1994, the start-up company [[Silicon Light Machines]] was founded by Bloom to develop and commercialize the technology. The company is now wholly owned by Dainippon Screen Manufacturing Co., Ltd.<ref>[http://www.screen.co.jp/press/NR080702E.pdf Dainippon Screen Mfg. Co., Ltd.]</ref>
In July 2000, [[Sony]] announced the signing of a technology licensing agreement with SLM<ref>[http://www.sony.net/SonyInfo/News/Press_Archive/200206/02-023E/ Sony Develops a Grating Light Valve display device that gives high resolution, excellent contrast ratio and wide color reproduction]</ref><ref>[http://meko.co.uk/glv.shtml Sony Signs Technology License Agreement with SLM]</ref> for the implementation of GLV technology in laser projectors for large venues,<ref>[http://www.hdtvexpert.com/pages/glv.htm SAY, ISN'T THAT ELVIS? The Grating Light Valve emerges from hiding in Salt Lake City]. Retrieved 2008</ref> but by 2004 Sony announced the SRX-R110 front projector using its own LCoS-based technology [[SXRD]].
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