Measurement and calibration devices for spectacle lenses and ophthalmic lenses, namely centering and blocking apparatus and instruments; measurement and calibration devices for spectacle lenses and ophthalmic lenses, namely centering and blocking apparatus and instruments, incorporating lens machining and grinding devices; measurement and calibration devices for spectacle lenses and ophthalmic lenses, namely contour following and/or reading apparatus and instruments for spectacle frame rims and/or spectacle lenses and/or ophthalmic lenses and/or lens patterns; computer software for controlling and monitoring optician's apparatus and instruments; computer software for controlling spectacle lenses and ophthalmic lenses

Machines for working, machining, cutting, grinding, edge grinding, edging, bevelling,chamfering, finishing, smoothing, polishing, fine reworking and/or stripping of spectacle lenses and ophthalmic lenses; machines, incorporating lens centering and blocking devices, for working, machining, cutting, grinding, edge grinding, edging, bevelling,chamfering, finishing, smoothing, polishing, fine reworking and/or stripping of spectacle lenses and ophthalmic lenses; edging machines for spectacle lenses and ophthalmic lenses; edging machines for spectacle lenses and ophthalmic lenses incorporating lens centering and blocking devices