Quality control for sealed lens packages
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsRussell J. Edwards, Edward R Kernick, Matthew Opie
Life of this patent
Estimating the term…
Abstract
A method for quality control of sealed contact lens packages may comprise disposing a package of a sealed contact lens in a light box, causing the package to be illuminated in the light box by a light source, capturing image data of the illuminated package in the light box, analyzing, based on one or more quality control models, the image data of the illuminated package in the light box, and causing, based on the analyzing, output of a quality control metric indicative of at least an accept or reject condition of the package.
Claims33
A system for quality control of sealed contact lens packages, the system comprising:
- a gripper to engage a package of a sealed contact lens and releasably secure the package to the gripper;
- a control mechanism comprising an armature coupled to the gripper and configured to control a movement of the gripper;
- a light box comprising a housing having an internal curved reflective surface defining at least a portion of a light cavity, the housing defining an aperture disposed opposite the internal curved reflective surface and allowing access to the light cavity, wherein the internal curved reflective surface comprises a coating configured to reflect light in both the visible and ultraviolet spectrums;
- a light source disposed to emit visible and ultraviolet light into the light cavity;
- and one or more sensors disposed to capture spectral data of the light cavity;
- wherein the control mechanism is further configured to cause the gripper to dispose the package in the light cavity, and
- wherein the one or more sensors are configured to capture one or more images of the package in the light cavity illuminated by the light source;
- wherein the one or more images of the package in the light cavity comprises a first image under visible light illumination and a second image under ultraviolet light illumination;
- and
- wherein the system is configured to analyze, based on one or more quality control models, the image data of the illuminated package in the light box;
- and
- cause, based on the analyzing, output of a quality control metric indicative of at least an accept or reject condition of the package.
A method for quality control of sealed contact lens packages,
- the method comprising:
- disposing a package of a sealed contact lens in a light box;
- causing the package to be illuminated in the light box by a light source;
- capturing image data of the illuminated package in the light box, wherein the image data of the illuminated package in the light box comprises a first image under visible light illumination and a second image under ultraviolet light illumination;
- analyzing, based on one or more quality control models, the image data of the illuminated package in the light box;
- and
- causing, based on the analyzing, output of a quality control metric indicative of at least an accept or reject condition of the package.
Dependencies are inferred from the claim text.