Patent ID: 7845797
Filing Date: 2010-12-07
Classification: G02C

Abstract:
1. A spectacle frame fitting system, the system comprising: an imager configured to capture a front image and a side image of a subject field; an image processor configured to receive and analyze the front image and the side image to determine a pupil position relative to a spectacle frame captured in the front and side images based in part on at least one of (1) a front difference image produced by subtracting the front image of the subject without the spectacle frame from the front image of the subject wearing the spectacle frame and (2) a side difference image produced by subtracting the side image of the subject without the spectacle frame from the side image of the subject wearing the spectacle frame; a positioner configured to locate a position of a subject wearing the spectacle frame within the subject field; and a beam splitter positioned in an axis of the front image and configured to reflect the front image to the imager positioned off of the axis of the front image.