Optical device diffraction gratings and a photomask for use in t
Optical element for correcting non-uniform diffraction efficienc
Optical element retaining member and method of manufacturing sam
Optical film
Optical film to simulate beveled glass
Optical information recording medium
Optical recording medium
Optical recording medium and manufacturing method thereof
Optical shutter array and method for making
Optical systems and refractive index-matching compositions
Organic electro-conductive thin films and process for production
Oriented polymer composition with a deoriented surface layer
Original plate for producing matrix
Ornamented tile surface covering
Outdoor floor covering
Pack of laminations with projections and depressions in torsiona
Packing laminate provided with crease lines
Pad for applying liquid or semi-solid material
Pad including heat sink and thermal insulation area
Pane for vehicle, and polymeric material sheet used in this pane