US 11,890,712 B2
Tool, device, and method for polishing lenses
Gunter Schneider, Marburg (DE); Stephan Huttenhuis, Niederweimar (DE); Andreas Fedoseew, Giessen (DE); and Nadine Geist, Solms (DE)
Assigned to SCHNEIDER GMBH & CO. KG, Fronhausen (DE)
Appl. No. 16/307,174
Filed by SCHNEIDER GMBH & CO. KG, Fronhausen (DE)
PCT Filed Jun. 2, 2017, PCT No. PCT/EP2017/025160
§ 371(c)(1), (2) Date Dec. 5, 2018,
PCT Pub. No. WO2017/211467, PCT Pub. Date Dec. 14, 2017.
Claims priority of application No. 10 2016 006 741.1 (DE), filed on Jun. 6, 2016.
Prior Publication US 2019/0126425 A1, May 2, 2019
Int. Cl. B24B 13/01 (2006.01); B24B 13/02 (2006.01); B24B 13/06 (2006.01); B24B 9/14 (2006.01)
CPC B24B 13/01 (2013.01) [B24B 9/14 (2013.01); B24B 13/012 (2013.01); B24B 13/02 (2013.01); B24B 13/06 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for polishing of a surface of an optical workpiece, comprising:
swiveling or advancing a tool with a curved polishing surface relative to the workpiece, so that a contact portion of the polishing surface of the tool is pressed partially against the workpiece to be polished,
moving the tool over a full diameter of the surface to be polished and through a center of the surface to be polished,
rotating the workpiece,
increasing a rotational speed of the workpiece when the tool is moved towards the center of the surface and decreasing the rotational speed of the workpiece when the tool is moved away from the center, and
rotating the tool at a constant rotational speed which is faster than a maximum rotational speed of the workpiece,
wherein the moving of the tool across the diameter of the surface combined together with the rotating of the workpiece results in the contact portion traversing a spiral polishing path.