摘要:
A polishing device for optical elements includes: a tool shank (1), and a polishing disc base; wherein the tool shank (1) is connected to the polishing disc base and is mounted on a tool shaft of a numerical-controlled processing device; wherein a polishing film (3) is stuck on the polishing disc base; the polishing disc base is a profiling polishing disc base (7), a cylinder polishing disc base (2), a profiling polishing disc base (12) or a spherical polishing disc base (8); wherein the tool shank (1) is independent and universal, thereby reducing the processing cost of the polishing device. A polishing method for optical elements is based on the shapes mentioned above of the polishing disc base.
摘要:
A polishing method particularly suitable for mirror-polishing the concave surface of a lens and a polishing device, the method characterized by including the step of polishing work surfaces (50a, 50b) while allowing parts of the dome-shaped parts of elastic polishing objects (10a, 10b) matching the curved shapes of the concaved work surfaces of the works (50a, 50b) selected from among the plurality of the elastic polishing bodies having the dome-shaped parts (11a, 11b) different in curvature and larger in area than the concaved work surfaces of the works (50a, 50b) to come into contact with the generally entire surfaces of the work surfaces, wherein the curvature centers (40) of the dome-shaped parts are generally aligned with the swing centers (41) of the works, whereby the concaved work surfaces can be rapidly and uniformly polished.
摘要:
A polishing apparatus includes a polishing jig. The polishing jig includes an elastic balloon member, a fixture, and a fluid supply portion. The fixture airtightly closes the rear opening portion of the balloon member. The fluid supply portion supplies a fluid into a space formed by the fixture and balloon member. The balloon member has a cup shape constructed by a dome portion and a cylinder portion extending backward from the outer periphery of the dome portion. The fixture fixes the opening portion of the cylinder portion of the balloon member.
摘要:
A plurality of planarizing machines for microelectronic substrate assemblies, and methods of mechanical and chemical-mechanical planarization of microelectronic substrate assemblies are disclosed. The planarizing machines for processing microelectronic substrate assemblies generally include a table, a pad support assembly either positioned on or in the table, and a planarizing medium coupled to the pad support assembly. The pad support assembly includes a fluid container and an elastic membrane coupled to the fluid container. The fluid container generally is a basin either that is either a separate component that is attached to the table, or a depression in the table itself. The fluid container can also be a bladder attached to the table. The membrane generally has a first surface engaging a portion of the fluid container to define a fluid chamber or cavity, and the membrane has a second surface to which the planarizing medium is attached. The planarizing medium can be a polishing pad attached directly to the second surface of the membrane, or the planarizing medium can be a polishing pad with an under-pad that is attached to the second surface of the membrane. The fluid chamber is filled with support fluid to support the elastic membrane over the fluid chamber. The support fluid can be water, glycerin, air, or other suitable fluids that support the elastic membrane in a manner that allows the membrane and the planarizing medium to freely flex inward into the fluid chamber under the influence of a mechanical force to provide at least a substantially uniform distribution of pressure across the substrate.
摘要:
A plurality of planarizing machines for microelectronic substrate assemblies, and methods of mechanical and chemical-mechanical planarization of microelectronic substrate assemblies are disclosed. The planarizing machines for processing microelectronic substrate assemblies generally include a table, a pad support assembly either positioned on or in the table, and a planarizing medium coupled to the pad support assembly. The pad support assembly includes a fluid container and an elastic membrane coupled to the fluid container. The fluid container generally is a basin either that is either a separate component that is attached to the table, or a depression in the table itself. The fluid container can also be a bladder attached to the table. The membrane generally has a first surface engaging a portion of the fluid container to define a fluid chamber or cavity, and the membrane has a second surface to which the planarizing medium is attached. The planarizing medium can be a polishing pad attached directly to the second surface of the membrane, or the planarizing medium can be a polishing pad with an under-pad that is attached to the second surface of the membrane. The fluid chamber is filled with support fluid to support the elastic membrane over the fluid chamber. The support fluid can be water, glycerin, air, or other suitable fluids that support the elastic membrane in a manner that allows the membrane and the planarizing medium to freely flex inward into the fluid chamber under the influence of a mechanical force to provide at least a substantially uniform distribution of pressure across the substrate.
摘要:
Various forms of contact lenses can be produced having improved properties. The surface of the lens to be polished is brought into contact with a polishing compound associated with a flexible (but non-resilient) sheet, causing the sheet to flex. Fluid pressure is applied to the sheet counteracting the flexing as a result of lens contact, so that polishing compound associated with the sheet makes contact with the lens surface with uniform force distribution. Relative rotation between the lens and sheet is effected so that all portions of the lens surface in contact with the polishing compound are polished to the same extent. The lens may then be ground to provide a multifocal lens. A multifocal hydrophilic or silicone contact lens having desired distance and intermediate powers may be constructed by acting on the lens so that it is capable of accepting grinding activity, and then effecting distortion-free grinding thereof. Usually a single vision hydrophilic or silicone lens is fitted in a wearer's eye, and then is removed and ground to provide a multifocal contact lens suitable for use by the wearer.
摘要:
A floating non-contact ultrasonic enhanced flexible sub-aperture polishing device and method are disclosed, an X-axis moving platform, a Y-axis moving platform, a Z-axis moving platform and a workpiece swinging platform in linkage control ensure normal lines of a tool and a workpiece are kept at an identical angle to realize sub-aperture processing; the ventilation main shaft acts air pressure on the ball spline's end portion to form an axial thrust to let the tool axially float; a dynamic balance among hydrodynamic pressure, air pressure and dynamic pressure is performed on the polishing liquid by rotation of the flexible tool; a tiny gap between the tool and workpiece is formed by elastic deformation of the flexible tool due to the dynamic pressure; a shearing force for removing materials is generated when the polishing liquid flows through the gap; a cavitation effect in the gap is formed by ultrasonic waves.
摘要:
There is disclosed a tool for smoothing or polishing an optical surface. The tool comprises: a body part which is rotatable about an axis of rotation; and a plurality of pads arranged in an array to bear against said optical surface for movement across the surface as the tool is rotated about said axis of rotation, wherein said pads are each mounted: i) for substantially linear movement relative to said body part in a direction substantially normal to said surface in the region where the pad contacts the surface; and ii) universal pivotal movement relative to said body part. The pads are biased towards said optical surface. In a preferred arrangement, a plurality of pistons are mounted for individual reciprocating movement relative to the body part along respective longitudinal axes, each of said pistons having a distal end to which a respective said pad is universally articulated, wherein said pistons are each biased towards said optical surface.
摘要:
A method is disclosed, whereby a reduced wear of the polishing tool and a reduced duration for the polishing process may be achieved and also free form surfaces and non-rotating workpieces may be polished. The above may be achieved whereby the surface of the tool actually in contact with the workpiece lies off the tool axis. The invention further relates to a method for polishing a surface of a workpiece, via a tool rotating about a tool axis, whereby the workpiece, at least in one region of the workpiece surface has a contacted surface which is part region of a surface for machining, which for its part is at least part of a polishing surface of the tool, whereby the tool axis intersects the polishing surface.