A cleaning station for an optical element is providing, including: an optical element holder configured to hold the optical element; a first drive configured to rotate the optical element holder around a rotation axis coinciding with an optical axis of the optical element when held by the optical element holder; a cleaning nozzle configured to project a cleaning jet of a cleaning liquid towards the optical element; and a separate drying nozzle configured to project a drying jet towards the optical element, the cleaning nozzle and the drying nozzle being configured to move in order to direct the cleaning jet and the drying jet, respectively, successively to different locations on the optical element.

A vehicular interior rearview mirror assembly includes a mounting portion, a mirror casing and a mirror reflective element. The reflective element includes a glass substrate having a planar front surface, a planar rear surface and a circumferential perimeter edge around a periphery of the glass substrate that extends across a thickness dimension separating the planar front surface from the planar rear surface. A front perimeter edge portion of the circumferential perimeter edge includes a rounded glass surface circumferentially around the periphery of the glass substrate, with the rounded glass surface at least partially spanning the thickness dimension of the glass substrate. The rounded glass surface has a radius of curvature of at least 2.5 mm. The planar rear surface of the glass substrate is coated with a coating. No portion of the mirror casing overlaps onto the rounded glass surface of the glass substrate.

Improved optical measuring devices and methods are disclosed for checking certain measurements taken of a patient's face before these measurements are used to create eyeglass lenses for the patient. Embodiments of the invention include a receptacle or bracket for receiving an eyeglass frame having demonstration lenses mounted therein. The frame is held in place, and one or more mechanical structures are provided below the frame which support one or more movable markers, typically one for each lens. The structures are moved according to the measurements taken of the patient's face. A stamping or marking mechanism is provided on each structure which is used to mark the pupil location on each respective lens after the structures are moved according to the patient measurements. The marked lenses are then taken to the patient for verification and modification of measurements, if necessary. Once the measurements have been verified, final lenses may be created.

Improved optical measuring devices and methods are disclosed for checking certain measurements taken of a patient's face before these measurements are used to create eyeglass lenses for the patient. Embodiments of the invention include a receptacle or bracket for receiving an eyeglass frame having demonstration lenses mounted therein. The frame is held in place, and one or more mechanical structures are provided below the frame which support one or more movable markers, typically one for each lens. The structures are moved according to the measurements taken of the patient's face. A stamping or marking mechanism is provided on each structure which is used to mark the pupil location on each respective lens after the structures are moved according to the patient measurements. The marked lenses are then taken to the patient for verification and modification of measurements, if necessary. Once the measurements have been verified, final lenses may be created.

A method of making a mirror substrate for a vehicular rearview mirror assembly includes providing a glass substrate having a planar front surface, a planar rear surface and a circumferential perimeter edge. The glass substrate is positioned at a fixture and the front perimeter edge portion of the glass substrate is ground by moving a grinding wheel around the periphery of the glass substrate to establish a rounded surface about and around the periphery of the glass substrate and between the planar front surface and a rear portion of the perimeter edge of the glass substrate. The rounded surface has a radius of curvature of at least 2.5 mm. The rounded surface provides a curved transition between the planar front surface of the glass substrate and the rear portion of the perimeter edge of the glass substrate. The planar rear surface of the glass substrate is coated with a coating.

A method of making a mirror substrate for a vehicular rearview mirror assembly includes providing a glass substrate having a planar front surface, a planar rear surface and a circumferential perimeter edge. The glass substrate is positioned at a fixture and the front perimeter edge portion of the glass substrate is ground by moving a grinding wheel around the periphery of the glass substrate to establish a rounded surface about and around the periphery of the glass substrate and between the planar front surface and a rear portion of the perimeter edge of the glass substrate. The rounded surface has a radius of curvature of at least 2.5 mm. The rounded surface provides a curved transition between the planar front surface of the glass substrate and the rear portion of the perimeter edge of the glass substrate. The planar rear surface of the glass substrate is coated with a coating.

A method implemented by computer for processing an unfinished optical lens member for manufacturing an optical lens, the unfinished optical lens member having an unfinished surface and an aspherical finished surface having a first reference system with a first reference point, and the optical lens to be manufactured including first and second surfaces, the first surface including a second reference system with a second reference point and included in the aspherical finished surface of the lens member, the method including: providing an unfinished optical lens member data; providing an optical function; providing a reference point position; providing an optical lens parameter; determining a reference system; determining a first surface dataset; and determining a second surface dataset.

Disclosed is a method for generating settings for machining an optical lens, including: a) acquiring a file characterizing the shape to which the optical lens must be machined in order to allow it to be mounted in a spectacle frame; b) decomposing the shape into a plurality of distinct objects, including an exterior envelope inside of which all the other objects are located; c) determining a machining order of the other objects; and d) generating the machining settings depending on the machining order.

Disclosed is a method for generating settings for machining an optical lens, including: a) acquiring a file characterizing the shape to which the optical lens must be machined in order to allow it to be mounted in a spectacle frame; b) decomposing the shape into a plurality of distinct objects, including an exterior envelope inside of which all the other objects are located; c) determining a machining order of the other objects; and d) generating the machining settings depending on the machining order.

A device and a method for machining, especially for polishing of an optical lens, are proposed, there being both a lens changing apparatus and also a separate tool changing apparatus. The lens changing apparatus is located between a working space and a conveyor apparatus for lenses and is pivotally mounted around a horizontal axis. The tool changing apparatus is located laterally next to the working space.