Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading
Reexamination Certificate
2011-07-19
2011-07-19
Dang, Hung X (Department: 2873)
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
With antiglare or shading
C351S047000
Reexamination Certificate
active
07980690
ABSTRACT:
The invention relates to a combined lens comprising two lens elements lying behind one another along the optical axis of the lens and means for displacing at least one lens element relative to the other lens element in a plane perpendicular to the optical axis of the lens.The invention also relates to spectacles provided with at least one combined lens according to the invention.The object of the invention is therefore to provide a less complex combined eye glass according to the above preamble, with which it is possible to adjust the lens elements relative to one another with a mechanism that can be easily operated. According to the invention the displacement means comprise at least one cam element that can interact with at least one of the lens elements. This way a structure is realised that is not only simple and sound, but that also enables a simple adjustment by the wearer of the combined lens.
REFERENCES:
patent: 3305294 (1967-02-01), Alvarez
patent: 5210552 (1993-05-01), Baran et al.
patent: 5444512 (1995-08-01), Morizumi et al.
patent: 5721969 (1998-02-01), Arai et al.
patent: 5790225 (1998-08-01), Flados
patent: 2002/0067552 (2002-06-01), Kazunori et al.
Dang Hung X
Smith , Gambrell & Russell, LLP
Stichting Focus on Vision Foundation
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