Optotech Optikmaschinen Gmbh

Carl Zeiss Vision International Gmbh

Oswin Lack

Roland Mandler

Gerd Nowak

Claude Volken

Ralf Vallerius

Sven Hänsch

Wito Hartmann

A protective film removal device has a first removal station for releasing a protective film from an optical lens first surface, a lens holder which has an imaginary central axis, at least one fluid nozzle having a nozzle exit duct, and a rotary mounting between the lens holder and the fluid nozzle(s). The rotary mounting is configured such that a relative movement about the central axis is able to be carried out by the fluid nozzle(s), wherein the nozzle exit duct of the fluid nozzle(s) is in each case oriented inwards. A lifting device between the lens holder and the fluid nozzle(s) is configured in such that a relative movement in relation to the lens holder, said relative movement being oriented along the central axis, is able to be carried out by the fluid nozzle(s). A method for releasing a protective film from a lens surface is also disclosed.

Protective film removing apparatus and method each for removing a protective film from an optical lens

A blocking piece for vacuum blocking a lens blank is disclosed. The blocking piece includes a blank contacting element formed of a rigid fluid-permeable material having an upper surface for contacting the lens blank. The blocking piece further includes a support element having an upper part tightly enclosing the blank contacting element on a peripheral surface of the blank contacting element and a lower part adapted to engage with a clamping device for clamping the blocking piece. The lens blank is fixed to the upper surface of the blank contacting element by applying a vacuum within the blocking piece to provide suction through essentially the entire upper surface of the blank contacting element. The disclosure further relates to a method for blocking a lens blank and a use of an element formed of a rigid fluid-permeable material as a part of a blocking piece.

Blocking piece and method for vacuum blocking a lens blank

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Munich, Georgia

Oswin Lack