Patent ID: 8069701

Claim:
A device for manufacturing a mold for use in the manufacture of an optical element, the device comprising: a workpiece holder for fastening the mold, a tool holder for fastening a die holder, a positioning device, the tool holder being provided with a stepped chamber which is displaceable relative to the workpiece holder by means of the positioning device, wherein the stepped chamber includes a first chamber portion and a second chamber portion which has a smaller diameter than the first chamber portion, the die holder slidably guided relative to the second chamber portion of the stepped chamber, wherein the die holder is configured to hold a die, the positioning device having a first vertical position, wherein the die is not in contact with the mold and the die holder is influenced to rest against a shoulder of the stepped chamber between the first chamber portion and the second chamber portion under an influence of a force, and a second vertical position wherein the die is in contact with the mold and the device imprints the mold by the die with the force independent of a positioning accuracy of the second vertical position during imprinting, the force deforming the mold.