Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Reexamination Certificate
2005-04-05
2005-04-05
Epps, Georgia (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
C359S465000, C349S015000
Reexamination Certificate
active
06876495
ABSTRACT:
Apparatus and method for the display of autostereoscopic images, in which two or more perspective views are generated by a single transmissive display screen is provided. A structured light source behind the screen directs light through different sets of display elements to correspondingly different viewing zones. The structured light source includes two crossed arrays of cylindrical convergent optical elements, two linear arrays of polarisation altering elements which, in conjunction with the convergent arrays and the first polariser of the LCD, prevent light from passing through a particular set of display elements and reaching the wrong viewing zone. In some variations, one or both of the polarisation altering arrays may be programmed. Observer co-ordinate data permits the correct viewing zone to be co-located with each of the observer's corresponding eyes and includes devices for accommodating changes in the observer's distance from the display. The displayed image adapts to the observer's location. All or part of the display may provide conventional two-dimensional images at the screen's full resolution.
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Epps Georgia
Harrington Alicia M.
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