Photochromic compounds and their use in photoreactive lenses

Plastic casting molds

Plastic lens and method for the production thereof

Plastic lens compositions

Plastic lens systems and methods

Plastic molding of articles including a hologram or other micros

Plastic solar panel structure and method for making the same

Polarizing film made of semicrystalline polyolefine

Poled electrets for gyricon-based electric-paper displays

Polymeric optical element having antireflecting surface

Prefabricated roadway marking strip material and method for prod

Preparation of high strength halide bodies

Preparing a hydrated contact lens

Preparing optical memory medium by laminating a thermoplastic re

Prevention of groove tip deformation in brightness enhancement f

Process and apparatus for casting lenses

Process and apparatus for manufacturing a core provided with ope

Process and apparatus for the manufacture of a contact lens

Process and device for the manufacture of mouldings

Process and device for the manufacture of mouldings and...