Rubber membrane for lens holder

摘要

A return valve (7) on the rubber membrane (4) is made of the same material. When open the valve joins the front and back side of the rubber membrane. The basic body of the component inserted into the lens holder, and the container pin (2) have a central hole (3) via which a vacuum or compressed air is conveyed to the interior of the basic body. The rubber membrane is held by a screw (6) and fixed axially by an annular groove (5). The valve is contained in a hollow cavity (10) in the basic body.