Abstract: An opaque adhesive can be used to secure the convex surface of a lens blank to a lens blocking piece. This opaque adhesive can include a resin that is curable under ultraviolet light and contains many dispersed pigment particles. The pigment particles may absorb light in the wavelength range of about 300 nm to about 800 nm such that the adhesive appears substantially opaque. A lens-on-block (LOB) system that uses the opaque adhesive to adhere a lens blank to a lens blocking piece facilitates on-block inspection of surface defects by increasing the contrast of light reflected from the surface being inspected. Put differently, the defects in the lens blank's surfaces stand out more when viewed in front of the opaque adhesive The inspection results can be used to carry out rework loops that eliminate or correct the detected defects, providing a streamlined method for on-block manufacturing of ophthalmic lenses.

Abstract: An opaque adhesive can be used to secure the convex surface of a lens blank to a lens blocking piece. This opaque adhesive can include a resin that is curable under ultraviolet light and contains many dispersed pigment particles. The pigment particles may absorb light in the wavelength range of about 300 nm to about 800 nm such that the adhesive appears substantially opaque. A lens-on-block (LOB) system that uses the opaque adhesive to adhere a lens blank to a lens blocking piece facilitates on-block inspection of surface defects by increasing the contrast of light reflected from the surface being inspected. Put differently, the defects in the lens blank's surfaces stand out more when viewed in front of the opaque adhesive The inspection results can be used to carry out rework loops that eliminate or correct the detected defects, providing a streamlined method for on-block manufacturing of ophthalmic lenses.

Abstract: A pre-production assembly of a semi-finished ophthalmic lens with a prismatic holding block and a method for producing such pre-production assembly, the method may include receiving as input pre-collected data about typical values of calculated prism for lens with different parameters; and according to the received input, producing a pre-production assembly of semi-finished ophthalmic lens with prismatic holding block. The pre-production assembly may include a semi-finished ophthalmic lens having one face finished with a base curvature; and a block assembly attached to the finished face of said lens, the block assembly having a connector to mount the semi-finished lens on a processing device and an adhesive layer adhering the block assembly to the finished face of the lens, the block assembly having a prism value determined according to lens parameters and the pre-collected data about typical values of calculated prism for lens with different parameters.

Abstract: Embodiments of the present invention provide a system and method of producing a customized spectacle lens. According to some exemplary embodiments, a method of producing a customized spectacle lens for use in a personalized viewing environment, e.g., a personalized short-distance viewing environment, a personalized long-distance viewing environment, or a personalized mixed-distance viewing environment, may include determining a personalized power profile of an intended user based on at least a far vision prescription of the user, a near vision prescription of the user, and customized values of a personalized gaze angle and a personalized distance of one or more control points in the viewing environment, the one or more control points corresponding to one or more objects in the viewing environment; and generating target surface data suitable for producing the customized spectacle lens based on the personalized power profile. Other embodiments are described and claimed.

Abstract: Embodiments of the present invention provide a system and method of producing a customized spectacle lens. According to some exemplary embodiments, a method of producing a customized spectacle lens for use in a personalized viewing environment, e.g., a personalized short-distance viewing environment, a personalized long-distance viewing environment, or a personalized mixed-distance viewing environment, may include determining a personalized power profile of an intended user based on at least a far vision prescription of the user, a near vision prescription of the user, and customized values of a personalized gaze angle and a personalized distance of one or more control points in the viewing environment, the one or more control points corresponding to one or more objects in the viewing environment; and generating target surface data suitable for producing the customized spectacle lens based on the personalized power profile. Other embodiments are described and claimed.