Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Combined
Reexamination Certificate
2008-01-25
2009-02-24
Dang, Hung X (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Combined
Reexamination Certificate
active
07494219
ABSTRACT:
A pair of spectacles for providing a redirected view includes a visor configured to support a pair of triangular optical prisms attached to the bottom surface of the visor in front of a wearer's eyes. The prisms provide an internally reflected and refracted path approximately normal to the forward vision allowing the wearer to view scenes without head or body reorientation. The visor and the prisms are oriented at an angle of 5 to 15 degrees below horizontal, as defined by the spectacles' handle portion, to position the prisms at an optimal viewing angle to enhance wearer comfort. The prisms are made wide and spaced close together to provide a panoramic perspective, with the inside lower corner radiused to provide room for a wearer's nose. Tinted and/or corrective lenses are removeably coupled to the spectacles so the lenses are in the vision path through the prisms.
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Dang Hung X
The Marbury Law Group PLLC
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