The present disclosure relates to a support device for a flexible plate structure, which belongs to field of regulation. The support device includes a base, a support rod, a plurality of contact rods, and a regulation structure. The support rod is disposed on the base. The plurality of contact rods are parallel to the support rod and arranged in an arc around the support rod, wherein side faces of the plurality of the contact rods provide a support surface for supporting the flexible plate structure. The regulation structure is connected to the support rod and the contact rod, wherein the regulation structure is configured to regulate a distance between the contact rod and the support rod to regulate a bending curvature of the support surface. The distance between the contact rod and the support rod is regulated by the regulation structure, and the bending curvature of the support surface is regulated, such that the bending curvature of the flexible plate structure is regulated. In the process of detecting the performance of the flexible plate structure, a support device may support the flexible plate structure under different bending curvatures, and thus a cost is reduced. In the detection process, it is not necessary to replace the support device, which improve the work efficiency.

A cuvette with at least one side having materials with thermal conductivity of at least 5 W/m-K, such as sapphire, for holding contact lenses or intra-ocular lenses during optical measurements. The cuvette may further include a backstop to ensure consistent measurements and a pedestal to minimize optical measurement variations.

A lens inspection module comprises: a lens insertion station, at least one lens inspection station, and a lens removal station as well as a closed-loop transportation rail, a cuvette transportation shuttle with a plurality of inspection cuvettes, and a self-driving cleaning shuttle for cleaning the rail. Cleaning shuttle comprises a driving unit a cleaning head, a suction unit, and a tube connecting cleaning head and suction unit. Cleaning head is spaced apart from suction unit and driving unit in the transportation direction and is pivotally arranged about a pivot axis. Cleaning head may comprise a distance sensor for detecting the distance between cleaning shuttle and transportation shuttle. Driving unit is configured to change the speed of the self-driving cleaning shuttle when the distance between the cleaning shuttle and the transportation shuttle is shorter than a predetermined threshold distance.

The disclosure relates to multi-purpose eyeglass lens inspection devices, and more particularly to such a device having a lighted base with a viewing lens assembly, an inspection lens assembly, and a plurality of interchangeable lenses with integral storage for the interchangeable lenses.

Systems and methods for acquiring and inspecting lens images of ophthalmic lenses using one or more cameras to acquire the images of the lenses in a dry state or a wet state. The images are preprocessed and then inputted into an artificial intelligence network, such as a convolutional neural network (CNN), to analyze and characterize for type of lens defects. The artificial intelligence network identifies defect regions on the images and output defect categories or classifications for each of the images based in part on the defect regions.

Disclosed herein are methods for quantifying contact lens deposition. An example method may comprise disposing a contact lens sample in a fluid well. The example method may comprise disposing a volume of tear fluid in the well with the contact lens sample. The example method may comprise capturing pre-rinse images of the contact lens sample. The example method may comprise rinsing the contact lens sample. The example method may comprise capturing post-rinse images of the contact lens after the rinsing. The example method may comprise determining, using one or more of the tear images or the post-rinse images, a deposition metric. The example method may comprise outputting the deposition metric.

Provided is a test method performed using a lens which comes into contact with a human body during use, the test method including the steps of: providing a membrane member including a membrane swellable upon absorbing water and a supporting base having an annular shape to support an outer periphery of the membrane; allowing cells to adhere on the membrane of the membrane member; and bringing the membrane to which the cells are adhered into close contact with the surface of the lens, by immersing the membrane member and the lens into a liquid and deforming the membrane in a swollen state along the surface of the lens.

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.

A test pattern is displayed on a planar display surface 14. The power of a test lens 20 is determined by measuring the magnification of the test pattern as seen through the test lens with the test lens at two different lens distances dl.sup.1, dl.sup.2 from the display surface and calculating the power from the two magnification values and the difference in lens distance Δdl. Apparatus for carrying out the method includes a digital display screen 14 for displaying the test pattern and a digital camera 16 for capturing images of the test pattern through a test lens 20. The apparatus has a lens carriage 18 in which a test lens 20 is mounted to hold the test lens between the display screen and the camera. The lens carriage 18 is movable under control of an electronic control system 28 in a linear direction perpendicular to the display screen to vary the distance between the test lens and the display screen.

A method is provided for measuring optical characteristics of a glass sheet as the glass sheet is conveyed in a system for fabricating glass sheets including one or more processing stations and one or more conveyors for conveying the glass sheet during processing. The method comprises providing a background screen including contrasting elements arranged in a pre-defined pattern and a camera for acquiring an image of the background screen; acquiring data associated with a shape of a glass sheet travelling on a conveyor upstream from the background screen; removing the glass sheet from the conveyor; and positioning the glass sheet between the camera and the screen and thereafter acquiring an image of the background screen; re-positioning the glass sheet for continued movement of the glass sheet on the conveyor; and performing one or more processing operations using the acquired image data to analyze the optical characteristics of the glass sheet.