In the fabrication process of aspheric glass lens and molds, shape characterization is a fundamental task to control geometrical errors. Nevertheless, the more significant geometrical functional aspect related to the optical properties is the curvature, which is rarely investigated in the manufacturing process of lenses. Algorithms for the assessment of shape and curvature errors on aspheric surface profile are presented. The method hasbeen investigated on profiles measured before and at different steps of the membrane polishing process. The results show how surface roughness, shape, and curvature change during the polishing process as a function of the machining time
Recent developments in high precision machining have allowed for the design and manufacture of preci...
A Computer Controlled Optical Surfacing (CCOS) system has been developed for correcting form errors ...
Freeform surfaces are a new and exciting opportunity in lens design. The technological boundary cond...
In the fabrication process of aspheric glass lens and moulds, shape characterization is a fundamenta...
The design and fabrication of moulds for the production of opthalmic lenses require the appropriate ...
In the productive process of moulds for ophthalmic lenses, the availability of a specialized tool fo...
The selection of modeling and machining parameters for glass mould fabrication in ophthalmic lenses ...
[[abstract]]This research investigates the effects of various parameters on the lapping and polishin...
Methods for the assessment of curved, rotationally symmetric surfaces in three dimensions are develo...
Especially in the market of sensors, LED lighting and medical technologies, there is a growing deman...
Measurement and characterisation of 3D form to maintain manufacturing quality has particular problem...
In an attempt to reduce manufacturing costs, contact lenses are manufactured using a cast moulding t...
In precision glass molding, refractive index change and geometric deviation (or curve change as ofte...
This paper proposes a method of quality for the uneven removal caused by the change of the radius of...
This work deals with the chemo-mechanical sub-aperture polishing of glass lenses using spiral tool p...
Recent developments in high precision machining have allowed for the design and manufacture of preci...
A Computer Controlled Optical Surfacing (CCOS) system has been developed for correcting form errors ...
Freeform surfaces are a new and exciting opportunity in lens design. The technological boundary cond...
In the fabrication process of aspheric glass lens and moulds, shape characterization is a fundamenta...
The design and fabrication of moulds for the production of opthalmic lenses require the appropriate ...
In the productive process of moulds for ophthalmic lenses, the availability of a specialized tool fo...
The selection of modeling and machining parameters for glass mould fabrication in ophthalmic lenses ...
[[abstract]]This research investigates the effects of various parameters on the lapping and polishin...
Methods for the assessment of curved, rotationally symmetric surfaces in three dimensions are develo...
Especially in the market of sensors, LED lighting and medical technologies, there is a growing deman...
Measurement and characterisation of 3D form to maintain manufacturing quality has particular problem...
In an attempt to reduce manufacturing costs, contact lenses are manufactured using a cast moulding t...
In precision glass molding, refractive index change and geometric deviation (or curve change as ofte...
This paper proposes a method of quality for the uneven removal caused by the change of the radius of...
This work deals with the chemo-mechanical sub-aperture polishing of glass lenses using spiral tool p...
Recent developments in high precision machining have allowed for the design and manufacture of preci...
A Computer Controlled Optical Surfacing (CCOS) system has been developed for correcting form errors ...
Freeform surfaces are a new and exciting opportunity in lens design. The technological boundary cond...