A system for fabricating coded lenses includes a cutting tool configured to controllably cut a workpiece at a specified position-dependent depth while traversing a surface of the workpiece along a specified two-dimensional path. A signal generator is operative to generate a signal for controlling fabrication of a coded lens from the workpiece. A vibration tool is operative to ultrasonically vibrate the cutting tool for cutting of gratings on the workpiece.

An automatic machine for drilling and milling substantially flat glass sheets includes a machine body; an input conveyor provided with a motorized roller conveyor or roller belt that conveys the glass sheet by its lower edge; an input conveyance surface provided with idle gliding wheels; an output conveyor provided with a motorized roller conveyor or motorized belt that conveys the glass sheet by means of its lower edge; and an output conveyance surface provided with idle gliding wheels. The machine further includes at least one carriage provided with synchronous horizontal motion along the longitudinal axis X2; and at least one pair of working heads provided independently with a synchronous vertical motion for adjustment and feeding along the axes Y1 and Y2, wherein, each head bears a tool provided with rotary motion (cutting) and feeding motion along the axes Z1 and Z2.

Provided is a hole cutting apparatus for forming a hole in a glass laminate substrate including a substrate, an adhesive layer, and the glass layer which are sequentially stacked. The apparatus includes a rotatable body, and a cutter coupled to a lower portion of the body, configured to form a hole in the glass layer by cutting the glass layer and at least a part of the adhesive layer and to deburr a surface of the hole, and including a cutting portion having a cross-sectional area in a horizontal direction that gradually decreases in a downward direction.

An automatic machine for drilling and milling substantially flat glass sheets shape, comprising includes a machine body; an input conveyor provided with a motorized roller conveyor or roller belt that conveys the glass sheet by its lower edge; an input conveyance surface provided with idle gliding wheels; an output conveyor provided with a motorized roller conveyor or motorized belt that conveys the glass sheet by means of its lower edge; and an output conveyance surface provided with idle gliding wheels. The machine further includes at least one carriage provided with synchronous horizontal motion along the longitudinal axis X2; and at least one pair of working heads provided independently with a synchronous vertical motion for adjustment and feeding along the axes Y1 and Y2, wherein, each head bears a tool provided with rotary motion (cutting) and feeding motion along the axes Z1 and Z2.

A drill bit, formed of a a drill blank and a drill body. The drill body includes multiple outer projections and outer wall channels and multiple inner projections and inner wall channels, where the inner wall channels are formed as back sides of the outer projections and the inner wall channels have complementary shapes to the shapes of the outer projections, and the outer wall channels are formed as the backside of the inner projections, and the outer wall channels have complementary shapes to the shapes of the inner projections, where the outer projections and outer wall channels are distributed around a circumference of the drill body, and wherein each of the outer projections and outer wall channels include at least one curved parts therein.

The invention is directed to a reusable mold for making a contact lens and the reusable mold has at least one of the mold halves is made from an oxide glass having a Knoop Hardness less than HK 350. The invention is also directed to a method for making an optical part by single point diamond turning an oxide glass having a Knoop Hardness HK less than 350.

The invention is directed to a reusable mold for making a contact lens and the reusable mold has at least one of the mold halves is made from an oxide glass having a Knoop Hardness less than HK 350. The invention is also directed to a method for making an optical part by single point diamond turning an oxide glass having a Knoop Hardness HK less than 350.

A device and a method for machining of a flat side of an optical workpiece. The device has two flat guides and a side guide for fluidic guidance of a spindle unit and/or a slide. A linear drive with an assigned tool is located on a slide with a turntable. Highly accurate machining is enabled.

The invention is directed to a reusable mold for making a contact lens and the reusable mold has at least one of the mold halves is made from an oxide glass having a Knoop Hardness less than HK 350. The invention is also directed to a method for making an optical part by single point diamond turning an oxide glass having a Knoop Hardness HK less than 350.

A turning tool has a cutting element for a lathe that uses metal-cutting technology, wherein the cutting element has a tool blade, wherein the tool blade of the cutting element has a curvature, in a top view, in which the tool blade intersects a tool axis of the cutting element at a perpendicular angle, in which the cutting element has an opening angle with reference to a center point, wherein the cutting element has asymmetry, in such a manner that the tool axis intersects the opening angle outside the center, and in which, in a top view of the cutting element, the curvature of the tool blade has a constant change in radius.