Stand for supporting spectacle lenses during grinding has rigid base, on which flexible pouch with granular filling is mounted, evacuation tube in base allowing air to leave pouch when lens is placed on it, so that it is held securely

摘要

The stand for supporting spectacle lenses (14) during grinding has a rigid base (2), on which a flexible pouch (8) with a granular filling (13) is mounted. An evacuation tube (4) in the base allows air to leave the pouch when a lens is placed on it, so that it is held on the upper surface of the pouch.