Hinges


	Glossary

Hinges

As an eyepiece is placed and removed from your face under normal conditions, the stress points of the frame tend to occur at the hinges. As a spectacle wearer, you will know how easy it is to damage a frame at the hinge.

Hinges with screws are standard joints where a screw is placed to hold the arm and frame perpendicularly.

Hinges without screws are where the arm and frame are made from one complete moulding. As such, it allows the arm of a frame to be extremely thin as there is no screw at the joint.

Spring Joints are specially designed hinges that allow a frame to open at a greater angle then normal. The stress points of a frame are thus reduced during daily wear.

Cam Action joints are hinges that lock and secure in place to prevent movement during sport. The hinges do not allow the frame to open at an angle greater then normal.


Different Options on this feature will be shown at London Eyewear with the following icons:
		With Screw Hinges with screw

		Without Screw Hinges without Screw

		Spring Joints Hinges with Spring Joints

		Cam Action Hinges with Locking Action