Blanks for ophthalmic lenses; Blanks for use in the manufacture of lenses; Close-up lenses; Coated ophthalmic lenses; Coatings for ophthalmic lenses; Correcting lenses (optics); Correction lenses; Corrective lenses; Corrective lenses for eye protection wear for sports; Eyeglass lenses; Eyeglasses having double gradient filtering lenses; Eyeglasses having filtering lenses; Eyeglasses having ground lenses; Eyeglasses having heat tempered lenses; Eyeglasses having smoked lenses; Finished lenses for spectacles; Finished lenses for sunglasses; Glass ophthalmic lenses; Interchangeable lenses; Lens blanks; Lens blanks for eyesight correction; Lens blanks for use in ophthalmic lenses; Lens blanks for use in optical lenses; Lens brushes adapted for photographic use; Lenses for eyeglasses; Lenses for glasses; Lenses for protective masks for workmen; Lenses for safety goggles; Lenses for spectacles; Lenses for sunglasses; Lenses for use by welders; Objectives (lenses) (optics); Ophthalmic lens centring apparatus; Ophthalmic lenses; Optical lenses; Optical lenses for use with spectacles; Optical lenses for use with sunglasses; Plastic lenses; Polycarbonate ophthalmic lenses; Replacement lenses; Semi-finished ophthalmic lenses; Spectacle lenses