Below you'll find a list of all posts that have been categorized as “Science”
Small diameter aspheres are often significantly more difficult to manufacture than their optical performance alone would suggest. In many projects, manufacturability issues are only discovered late during supplier discussions or fabrication quoting. By that point, redesigns, delays and unexpected cost increases are common. One reason is that not every fabrication technology is suitable for every asphere geometry. The applicability of …
For chemical-mechanical polishing of optical surfaces, a certain contact pressure between the polishing tool and the workpiece surface is necessary. It is determined via the polishing force FP and the tool size. If this pressure is not transferred on the entire surface of the workpiece holder, undesirable deformations in the workpiece can occur, which ultimately lead to shape defects. For …
