An eyeglass frame typically consists of the main components: lens rims, nose pads, temple tips, and temples. In addition to these, there are also temple tips, lens screws, and hinge screws.
1. Lens rims (frame): The mounting point for the lenses. They are secured using metal wire, nylon thread, and screws, through grooves or drilled holes. They affect the lens cutting and the overall shape of the eyeglasses.
2. Nose bridge: Connects the left and right lens rims or is directly fixed to the lenses. The nose bridge may rest directly on the nose or be supported by the lens tips.
3. Nose pads: Include the lens stem, lens box, and lens. The lens directly contacts the nose, providing support and stability to the frame. Some cast plastic frames may lack the lens stem and lens box; the lens is connected directly to the lens rim.
4. Temple tips: The connection between the lens rim and temple tips, usually curved.
5. Temple tips: Hooks that rest on the ears; they are movable and connected to the temple tips, securing the lens rims.
6. Hinge: A joint connecting the lens head and the temple.
7. Locking Block: Tightening the screws secures the locking blocks on both sides of the lens opening, thus fixing the lens in place.
