Custom eyeglass manufacturing method
First Claim
Patent Images
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.
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Abstract
Two or more images captured from digital cameras record an image of spectacle frames on a subject. The image is analyzed using automated image-processing techniques to identify the relation of specific points of interest on the frame to the location of each of the subject'"'"'s eyes allowing the optical center of the lens to be placed in the correct location in the frames.
93 Citations
18 Claims
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1. A spectacle frame fitting system, the system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15)
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12. A method of fitting a corrective lens to a spectacle frame, the method comprising:
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capturing a front image of a subject wearing the spectacle frame; capturing a side image of the subject wearing the spectacle frame; capturing a front image of the subject without the spectacle frame; capturing a side image of the subject without the spectacle frame; subtracting the front image of the subject without the spectacle frame from the front image of the subject wearing the spectacle frame to produce a front difference image; subtracting the side image of the subject without the spectacle frame from the side image of the subject wearing the spectacle frame to produce a side difference image; determining a position of the corrective lens frame from at least one of (1) the captured front images and the front difference image and (2) the captured side images and the side difference images; determining the position of at least one pupil of the subject from at least one of the captured and difference images; and determining a pupilary center of the corrective lens based in part on the position of the corrective lens frame and the position of the pupil. - View Dependent Claims (13, 14)
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16. A method of fitting a corrective lens to a spectacle frame, the method comprising:
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capturing a front image of a subject wearing the spectacle frame; capturing a side image of the subject wearing the spectacle frame; capturing a front image of the subject without the spectacle frame; capturing a side image of the subject without the spectacle frame; subtracting the front image of the subject without the spectacle frame from the front image of the subject wearing the spectacle frame to produce a front difference image; subtracting the side image of the subject without the spectacle frame from the side image of the subject wearing the spectacle frame to produce a side difference image; determining the position of at least one pupil of the subject from at least one of the captured and difference images; and determining a position of the pupilary center of the corrective lens from the position of the pupil and at least one of (1) the captured front images and the front difference image and (2) the captured side images and the side difference image. - View Dependent Claims (17, 18)
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Specification