Method for optimizing and/or manufacturing eyeglass lenses

Abstract

A method for determining an optical eyeglass lenses design for a viewer comprising the successive steps of: showing the viewer a stereoscopic scene, said scene being shown with optical effects of the first lens design; expressing the viewer's opinion; showing the viewer a stereoscopic scene including optical effects of a modified lens design; introducing a relative movement between the viewer and the shown stereoscopic scene, and said scene being shown with the modified lens optical effects; expressing again the viewer's opinion; repeating the three last steps up to viewer's satisfaction. A system for customizing vision correction suitable to implement said method. Related computer program for dynamically calculating a stereoscopic image. Related computer program for actuating an electro-active component.

1 - 38 . (canceled) 
     
     
         39 . A system for customizing vision correction of eyeglass lenses comprising means to show a stereoscopic scene including optical effects of a lens design to a viewer, said means being suitable to show the stereoscopic scene in different head positions of the viewer, which comprises:
 a measurement system configured to determine viewer's head position;   a lens design data base that includes the surface characteristics and corresponding dioptric power of several model lens designs;   a calculation system configured to receive the measured head position and data of a length design so as to calculate its optical effect, which is the optical distorsions due to said lens design, and to apply a metric so as to calculate a stereoscopic scene corresponding to the image seen by the patient in the determined position and where said calculation system is fed by a lens design data base;   a projecting system of said calculated stereoscopic image to the viewer's eyes onto a stereoscopic scene.   
     
     
         40 . The system of  claim 39  where the data of the lens design comprises optical distortion data. 
     
     
         41 . The system of  claim 39  where the data further comprises a set of parameters related to the given lens. 
     
     
         42 . The system of  claim 39  where the measurement system comprises a head movement tracker. 
     
     
         43 . The system of  claim 42  where said head movement tracker is intended to be placed on the top of the head of the viewer. 
     
     
         44 . The system of  claim 39  where the calculation system is further configured to apply the metric using distortion approximation calculation in a given plan independently of the actual distance of the object of the scene. 
     
     
         45 . The system of  claim 39  where the projecting system of the stereoscopic image includes a projector and a screen. 
     
     
         46 . The system of  claim 45  where the screen is a three part screen with 120° field of view. 
     
     
         47 . The system of  claim 39  where the projecting system of the stereoscopic images includes a stereoscopic head mounted display. 
     
     
         48 . The system of  claim 39  where means to show a stereoscopic scene include an electro-active component suitable to reproduce the optical effect of a given lens design. 
     
     
         49 . The system of  claim 48  where the electro-active component is a deformable mirror, for example a piezoelectric deformable mirror. 
     
     
         50 . The system of  claim 48  where the electro-active component is spatial light modulator. 
     
     
         51 . The system of  claim 39  further comprising a selection system activated by the viewer to feed back his opinion. 
     
     
         52 . The system of  claim 51  where the system is further configured to choose a new set of parameters of a lens as a function of response of the selection system when activated by the patient's feedback. 
     
     
         53 . The system of  claim 39  further comprising a fabrication system configured to produce correcting eyeglass lenses based on lenses parameters including the result of the feedback of the viewer. 
     
     
         54 . The system of  claim 53  where the fabrication system includes a lens printer, such as an ultraviolet engraving system or a direct machining tool.