Stereoscopic glasses using tilted filters
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United States of America Patent
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Sep 8, 2020
Grant Date -
Jul 18, 2013
app pub date -
Jan 17, 2012
filing date -
Jan 17, 2012
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Abstract
Filter glasses for use by an observer of a stereoscopic digital display system that displays stereoscopic images including first-eye images and second-eye images. The filter glasses include a first-eye filter that substantially transmits light from the first-eye images and blocks light from the second-eye images, and a second-eye filter that substantially transmits light from the second-eye images and blocks light from the second-eye images. A frame is used to position the first-eye filter in front of the observer's first eye and to position the second-eye filter in front of the observer's second eye, such that the front surfaces of the filters are oriented at a tilt angle of at least 5 degrees relative to vertical so that light from the display surface that is reflected from the first-eye filter and the second-eye filter is directed over the heads of other observers that are seated in front of the observer.
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