Abstract: The present invention defines an optical polishing lap comprising a thermoplastic polymer resin of uniform density, porosity, and texture throughout including the surface of the lap. The optical lap is of unitary construction formed having a solid main body with a generally domed-shaped upper head portion of substantially monolithic form providing an upper curved surface. The optical lap includes a lower flat surface having an attachment means defining an integral base portion extending downward opposite the lower flat surface offset from the main body. The integral base portion defines webbing having a continuous peripheral rail extending around the edge.

Abstract: An instrument for use in optical laboratories for indicating the setting of a lens edger device based upon the relationship between a lens pattern or dummy lens and the lens opening of a spectacle frame into which a finished lens is to fit. The instrument can be used to determine the lens edger setting to produce a finished lens to fit both rimmed spectacle frames and rimless spectacle frames. The instrument gauges the size of the spectacle frame lens opening in relationship to either the lens pattern in the event of fitting a lens to rimmed spectacle frames, or a dummy lens in the event of fitting a lens to rimless spectacle frames.

Abstract: An instrument for use in optical laboratories for indicating the setting of a lens edger device based upon the relationship between a lens pattern or dummy lens and the lens opening of a spectacle frame into which a finished lens is to fit. The instrument can be used to determine the lens edger setting to produce a finished lens to fit both rimmed spectacle frames and rimless spectacle frames. The instrument gauges the size of the spectacle frame lens opening in relationship to either the lens pattern in the event of fitting a lens to rimmed spectacle frames, or a dummy lens in the event of fitting a lens to rimless spectacle frames.