Imaging of primary eyewear for remote production of secondary eyewear

Abstract

A positioning system for use with a platform adapted to hold primary eyewear and an imaging device in mutual disposition and designed to arrange eyewear such that a front face thereof is at a predetermined orientation of an imaging device. The positioning system comprises an alignment device having an eyewear supporting portion and an alignment portion. The alignment portion is adapted to bear against the front face of the eyewear and, at least in use, positioned so as to impart the orientation to the eyewear. The predetermined orientation is preferably such that the front face is perpendicular to the optical axis of the imaging device.

1 . A positioning system for use with a platform adapted to hold primary eyewear and an imaging device in mutual disposition and designed to arrange the eyewear such that a front face thereof is at a predetermined orientation of the imaging device, the positioning system comprising an alignment device having an eyewear supporting portion and an alignment portion, said alignment portion being adapted to bear against the front face of the eyewear and, at least in use, positioned so as to impart the orientation to the eyewear.  
   
   
       2 . A positioning system according to  claim 1 , wherein the predetermined orientation is perpendicular to the optical axis of the imaging device.  
   
   
       3 . A positioning system according to  claim 1 , further comprising grips held within a back panel of the platform, each grip being adapted to tightly grasp a temple of the eyewear, at least when said eyewear is arranged by the alignment device.  
   
   
       4 . A position system according to  claim 3 , wherein the grips each comprise an opening adapted to permit substantially frictionless insertion of the temple therethrough, and a slit, extending therefrom, adapted to provide said grasping.  
   
   
       5 . A positioning system according to  claim 1 , wherein the alignment portion further comprises pads positioned so as to bear against the eyewear.  
   
   
       6 . A platform adapted to hold primary eyewear and an imaging device in mutual disposition, the platform comprising a back panel and a support, the back panel comprising two apertures; the support being adapted, together with the apertures, to carry the eyewear, said apertures being located with respect to the support so as to dispose the eyewear in a predetermined disposition.  
   
   
       7 . A platform according to  claim 6 , wherein bottoms of the apertures are located substantially lower that the support.  
   
   
       8 . A method of imaging primary eyewear for determining the geometry of a front face thereof, wherein the eyewear is imaged front at least two vantage points.  
   
   
       9 . A method according to  claim 8 , wherein the at least two vantage points are mutually perpendicular,  
   
   
       10 . A method according to  claim 8 , wherein one of the vantage points is from the front of the eyewear.