A vehicular frameless interior rearview mirror assembly includes a mirror head and a mounting portion. The mirror head includes a mirror reflective element and a mirror casing. The mirror reflective element includes a glass substrate having a planar front side and a planar rear side. No portion of the mirror casing overlaps the planar front side of the glass substrate of the mirror reflective element. A camera is disposed within the mirror casing. With the mounting portion of the mirror assembly mounted at an in-cabin side of a windshield of a vehicle, the camera views a driver of the vehicle, and when the mirror head is moved by the driver of the vehicle to adjust the rearward view provided by the mirror reflective element to the driver, the camera moves in tandem with movement of the mirror head. The camera is part of a driver monitoring system of the vehicle.

A tool drive unit for a turning device for machining workpieces has a tool holder driven in a displaceable manner along an infeed direction by a first linear motor and driven in a pendular/displaceable manner in a direction transverse to the infeed direction by a second linear motor. Both linear motors have a moving coil/piezo element. The turning device has a main infeed drive, which produces a primary infeed movement of a turning tool in an infeed direction, and has a main transverse drive which produces a primary transverse movement in a transverse direction transversely to the infeed direction. The turning device has a secondary transverse drive whose movements are oriented in the same direction as the main transverse drive, wherein the turning tool and the axis of rotation can be moved towards one another and away from one another by the superimposition of primary and secondary transverse movements.

A vehicular frameless interior rearview mirror assembly includes a mirror head and a mounting portion. The mirror head includes a mirror reflective element and a mirror casing. The mirror reflective element includes a glass substrate having a planar front side and a planar rear side. No portion of the mirror casing overlaps the planar front side of the glass substrate of the mirror reflective element. A camera is disposed within the mirror casing. With the mounting portion of the mirror assembly mounted at an in-cabin side of a windshield of a vehicle, the camera views a driver of the vehicle, and when the mirror head is moved by the driver of the vehicle to adjust the rearward view provided by the mirror reflective element to the driver, the camera moves in tandem with movement of the mirror head. The camera is part of a driver monitoring system of the vehicle.

Disclosed is a method of preparing an operation of surfacing of a lens blank to transform the lens blank into a generated lens having a predetermined prism corresponding to an inclination between a front surface and a back surface of the generated lens at least locally. The method includes: for a plurality of devices destined to interact with the lens blank during the operation of surfacing to manufacture the predetermined prism of the generated lens, attributing a priority order to each; based on the priority order, attributing to each device a prism portion which is zero or included in a respective range delimited by a respective minimum prism portion and a respective maximum prism portion, the prism portion representing contribution of the corresponding device to the prism of the generated lens, for further interaction of each device with the lens blank during the operation of surfacing.

Methods and systems for manufacturing a wavefront-guided scleral lens prosthetic device customized for an eye of a patient include obtaining a first scleral lens prosthetic device with a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone configured to align with the eye's sclera, collecting measurements of any offset and/or rotation of the first scleral lens prosthetic device relative to the eye's pupil and of any aberrations, particularly higher-order aberrations, generating a wavefront-guided profile from the measurements, and fabricating a second scleral lens prosthetic device with the profile on a surface of a central optic zone configured to vault over the eye's cornea and a peripheral haptic zone customized to align with the eye's sclera.

Disclosed is a device for polishing an intraocular lens by using an electrorheological effect. The device comprises a supporting plate (14), an electric motor (16), a conductive slip ring (18), an outer sleeve (20), a tool shaft (22), a connecting flange (24), an annular electrode (26) and a tool needle (28). The electric motor (16), an outer ring of the conductive slip ring (18), and the outer sleeve (20) are all installed on the supporting plate (14). The electric motor (16) drives the tool shaft (22) to rotate by means of a transmission assembly. One end of the tool shaft (22) is closely fitted with an inner ring of the conductive slip ring (18), and the other end of the tool shaft extends into the outer sleeve (20). The connecting flange (24) is installed on the outer sleeve (20). The annular electrode (26) is connected to the connecting flange (24). One end of the tool needle (28) is connected to the tool shaft (22), and the other end of the tool needle extends out of the annular electrode (26). The tool needle is used as a cathode and the annular electrode is used as an anode in the apparatus. The apparatus thus has a good insulation effect and both tool needle and annular electrode can be detached and adjusted, such that different polishing requirements can be met, and high-quality deterministic polishing for an aspherical intraocular lens can be completed. Further the present invention provides a method for polishing an intraocular lens by using an electrorheological effect.

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 device for processing spectacle lenses has a work chamber, which is accessible by way of an opening and in which a workpiece mount and at least one tool mount are opposite one another and movable relative to one another so that a processing region of a tool held at the tool mount can be brought into processing engagement with a workpiece held at the workpiece mount and in processing engagement can be guided over the workpiece. For recognition of wear at the tool, a sensor equipment with at least one contactlessly operating sensor arrangement is provided and is movable outside the work chamber between a protected rest position and a detecting position. In the detecting position the sensor equipment is constructed to detect at the processing region of the tool held at the tool mount an unacceptable deviation beyond a predetermined amount from a desired geometry.

A vehicular interior rearview mirror assembly includes a mounting structure, a plastic mirror casing, and a mirror reflective element having a glass substrate. The glass substrate includes a periphery surface extending between a planar first surface and a planar second surface and spanning a thickness dimension of the glass substrate. The mirror casing includes a central mounting portion and spaced apart attachment portions. The mirror reflective element is adhesively attached the spaced apart attachment portions. The central mounting portion includes a first pivot element and the mounting structure includes a second pivot element, the first pivot element and the second pivot element forming a pivot joint. The periphery surface of the glass substrate includes a curved outer surface that provides a rounded transition between the planar first surface of the glass substrate and a less-curved outer surface of a side wall of the mirror casing.