A method of making a photoactive coating includes depositing a first coating material containing zirconium oxide over at least a portion of a substrate and depositing a second coating material containing titanium oxide over at least a portion of the first coating material to provide a coated substrate. The lens supporting section 20 includes one end portion 201 connected to the peripheral portion of the optical section 10 via the connecting portion 50 in a movable manner, and the other end portion 202 to be engaged with the equator Se of the lens capsule S. The connecting bearings each include a guide bar that is securely connected to the brake carrier and guided in a slide bearing of the caliper for the axial displacement thereof. The moving platen is then moved in the opposite direction to close the mould. Useful products can be diverted at various points of the process or internalized to enhance the efficiency of the system.