Molding methods can produce surfaces without removing material. Both precision glass molding and plastic injection molding can be used to produce aspherical lenses. Precision glass molding heats glass ...

using the technique of replication molding. While playing with that, he realized that an inexpensive glass or plastic lens could stand in for the precision-machined metal mandrel which is usually ...

This ultra precision freeform machine comes with Precitech’s ... The Nanoform ® 250 ultragrind is designed for different applications such as mold inserts for molding lenses and glass pressing and ...