Opening angle and pantoscopic angle can be adjusted. Adjust the opening angle via the front and bridge. In the case of the vertical temple type, you can also easily adjust the temple curvature. Adjust the pantoscopic angle by holding on to the side piece and hinge body by hand and bend the temple up or down. The front part of the temple is the area that should bend. A maximum of two degrees either direction is recommended. Do not bend the side piece neck. The same method applies for both temple types.
The hinge function is best understood as follows. The temple forms a square claw at the front end. It holds on to the hinge axis. A square axis inside the side piece corresponds to this claw. When operating the hinge, the claw acts as a spring. It is pushed open by the axis when turning to the 45° position and reaches a dead point. It is relaxed at 90 and 180°. The same spring tension also provides a flex of about 20° to the outside. This feature protects the hinge from over-bending and increases longevity.
NYHAVN frames have a rim lock element which is integrated into the base of the pad arm. To exchange lenses, protect the lens and frame area under the rim lock with no residue tape. If possible, choose a Phillips head screwdriver with a long shaft to avoid collisions with the frame. Loosen the rim lock screw two full turns. The demo lens should come out easily now. A full removal of the screw is not necessary. Fronts are bent to a flat base curve for by default, but can be manipulated with padded pliers or by hand to conform to a slightly different curvature for optimal lens fit. Insert the optical lens and tighten the rim lock screw until no gap is visible and the lens is held firmly in the rim.
NYHAVN frames are highly adjustable. The entire frame is made of stainless steel, so it can be bent and manipulated in the following ways: Adjust nose pad arms by hand or with padded pliers, and only while the rim lock screw in the base of the pad arm is fastened. Our round silicone nose pads can be exchanged. Choose from a range of five sizes, all available as spare parts. Pad size and pad arm position are the two ways to adjust the nose fit.
Should the temple get damaged or should the hinge tension decrease over time, the temple can be taken off. Move the temple to the open position and hold the front by the hinge. Pull the temple away from the front until it disassembles from the front. This should not require tools. In fact, using hands only will avoid any tool marks on the paint. Replacement temples are available for warranty cases. Should the hinge tension and spring effect have decreased over time, the temple does not necessarily need to be replaced. Tighten the claw with needle-nose pliers. A serrated jaw helps keeping the claw in place. Be careful not to damage the painted area. Slowly press the claw together until it almost touches itself. The same process works with both horizontal and vertical temple types.
The temple tips are fully adjustable in all directions by hand with the temple tips mounted. The silicone temple tips contain a hard plastic end cap which protects the silicone and helps to hold the part in position. The temples can be shortened. Pull off the temple tip and cut the front opening end of the silicone part by four or eight millimeters with a sharp knife on a cutting mat. Cutting marks are provided. Cut the end of the steel temple at the same distance. Subtle incisions are provided as cutting marks. Wire cutters work well. Round over the cut end with a file to avoid sharp burrs damaging the silicone. Push the temple tip back onto the temple. Make sure the hard end cap sits on the metal core properly.