Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With support or holder
Reexamination Certificate
2007-07-20
2010-06-08
Mai, Huy K (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With support or holder
C351S063000, C351S121000, C351S153000, C016S228000
Reexamination Certificate
active
07731356
ABSTRACT:
Eyeglasses that can be hung around the wearer's neck, without the necessity of a chain or cord, can be rotated between a normal viewing position, a conventional storage position and a hanging position. In the hanging positions, the rear ends of temple arms are spaced apart by a distance less than the diameter of a normal wearer's neck. In embodiment in which a hinge between the lens frame and the temple arms can be pivoted about three orthogonal axes, the lens frame will lie flat against the wearer's chest or neck. Two hinge configurations that allow the lens frame to lie flat include a ball and socket joint and a multiple hinge joint. The temple arms can also be extended so that the eyeglasses will more comfortably fit around the wearer's neck in the hanging position.
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Mai Huy K
Pitts Robert W.
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