Lens edging apparatus
Номер патента: CA1111652A
Опубликовано: 03-11-1981
Автор(ы): Wilfredo P. Loreto
Принадлежит: AIT INDUSTRIES Inc
Опубликовано: 03-11-1981
Автор(ы): Wilfredo P. Loreto
Принадлежит: AIT INDUSTRIES Inc
Реферат: IMPROVED LENS EDGING APPARATUS Abstract of the Disclosure An apparatus for edging the periphery of an ophthalmic lens to a predetermined outline or edge configuration, is characterized by a work holder for supporting and rotating a lens while moving an edge of the lens against a grinding surface of a grinding wheel. During grinding the lens is engaged with only a portion of the surface, and to prevent a groove from being formed in the surface a sensor automatically detects the highest point on the surface and controls movement of the work holder to move the lens thereagainst. In consequence, the wheel wears evenly, it retains a substantially cylindrical shape, all portions of its grinding surface are effectively used in grinding lenses, and formation of a groove in its surface is prevented, whereby the wheel does not require retruing or reshaping and its useful life is significantly increased.
Lens edging system, edging size management device, edging size management method and method of manufacturing spectacle lens
Номер патента: US09962803B2. Автор: Tsukasa Sato,Takahiro SUZUE. Владелец: Hoya Corp. Дата публикации: 2018-05-08.