Optical: systems and elements – Extended spacing structure for optical elements – Extension of tubular element adjustable
Reexamination Certificate
2011-06-21
2011-06-21
Font, Frank G (Department: 2872)
Optical: systems and elements
Extended spacing structure for optical elements
Extension of tubular element adjustable
C359S601000
Reexamination Certificate
active
07965443
ABSTRACT:
Light transmission may be controlled using a system that includes a linear polarizing means and an ellipticity increaser associated with a display. The ellipticity increaser is configured and oriented with respect to the linear polarizing means for increasing the ellipticity of light passing from the linear polarizing means through the ellipticity increaser. The system also includes an ellipticity adjuster and a linear polarizer spaced away from the display. The ellipticity adjuster is oriented with respect to the linear polarizer for increasing the ellipticity of light passing from the linear polarizer through the ellipticity adjuster. The ellipticity increaser and adjuster are disposed between the linear polarizing means and the linear polarizer, and are configured and oriented with respect to each other for reducing ellipticity of light passing from the linear polarizing means through the ellipticity increaser and adjuster to the linear polarizer.
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Aither Optics, Inc.
Font Frank G
McMahon John C.
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