For spectacles, side shields are generally used as a protective measure, especially in factory environments. To aid vision, they're usually made from transparent, high impact resistant optical plastic such as Trivex or polycarbonate to let as much light-in as possible. The temples or arms are the part of the glasses frame that keeps your glasses straight and secure on your face. Most will hook behind the ears, which helps keep them secure (Oakley is an exception to this with their patented three-way grip), and they will often sport rubberised temple tips for added comfort and grip.

One of the most common problems is glasses that become too loose. The arms widen over time, usually caused by users propping the glasses on top of the head while not in use. Another is glasses that become crooked when one arm has been bent out of shape and are no longer symmetrical. Full rim nose pads are almost always part of the frame front. When the frame front is being cut from the acetate or horn sheet, the nose pads are sculpted as part of the frame as a single piece. In this more detailed section, you can explore the sub-types of each component to get an idea of their shape, style, material and function. Treat your sunglasses like the precious accessories they are. Avoid gripping them by the arms when taking them on or off, as this can strain the hinges. 2. Keep Them Clean and Protected Glasses frames comprise of three main parts, containing multiple sub-parts within their construction. Primarily, there is the frame-front and two protrusions known as temples. These main components come in many different forms and materials which have their own specific functions, styles and names.

The bridge aperture, also called the bridge apical radius, can be seen from the front of the frame. This space makes room for the majority of your nose. Without this space, your nose couldn't locate into your glasses frame. Bifocal | Prescription reader | Ready reader | Single vision | Varifocal | CR39 | Crown glass | Plano | Polycarbonate | Trivex | Supra If your glasses have tenon hinges, they’ll most likely be fastened via two or three little metal rivets. Cross head screws are slightly less common and use a cross shaped (Phillips) slot in the top of the screw head.

For half-rimless frames, the lens in held in place by a nylon cord called the eyewire that attaches to the frame in two places. Nose pads like these are very robust and can be adjusted by filing the acetate or horn away to reduce their height. To make them smooth again, the nose pads require hand polishing so they aren’t rough on your nose. Frame front | Endpieces | Bridge | Lenses | Temples | Temple tips | Hinges | Screws | Nose pads | Rivets | Other parts of glasses Standard hinges are more affordable. Thanks to the uncomplicated design and wide use of the barrel hinge, eyeglasses that feature them are often more affordable. Standard Barrel Hinge Cons: This melt makes a sturdy bond between the hinge and the frame without the need for rivets. As you can imagine, hidden hinges are a sleeker design with less components, however they are very rarely repairable.Sunglasses are more than just fashion accessories; they are our loyal companions in the face of the sun's harsh rays. If you find yourself facing the unfortunate event of a broken sunglass arm, remember that all hope is not lost. With DIY solutions, sunglass repair kits, and the helping hand of a professional, you can keep your favorite shades looking stylish for years to come. And let's not forget the importance of prevention – a little care goes a long way in maintaining the longevity of your prized sunglasses. So, go ahead, flaunt your shades, and enjoy the sunny days with a clear vision of the world! We will try to provide diversified parts from Eyepieces, endpieces, nose pads, temples,screws, cable temples to hinges and spring hinges.

In each of your hinges, the dowel screw locates and into each of the threaded tenons. Using a flat-headed screwdriver, the screw is wound tight to pull each half joint together to create a firm and durable connection. A number of eyeglass manufacturers have developed proprietary technology for spring/flex hinges that bend in all directions to provide optimal durability and a more secure fit. Renowned maker Persol uses their patented Meflecto system to craft eyeglass and sunglass temples that flex in multiple directions without pinching. Another is Aspex Eyewear’s signature EasyTwist TurboFlex hinges that flex and bend 360 degrees to withstand impacts and fit comfortably. Sferoflex takes its name from the brand's patented hinge technology that allows the temples to flex around the wearer’s face and prolong the life of the frames. Hingeless Eyeglasses

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Hinges can also be called “joints” as they conveniently join your frame front with each of your temples. Spring hinges are common amongst low cost glasses frames such as ready readers. They can cater for a wider range of head shapes and offer a one-size-fits-all mechanism. Frames use a very flexible material, usually titanium, for the temples. The springiness of the temples lightly pinches your head to hold the glasses in place. Hingeless frames are often used for sports or high activity glasses. Joints/hinges use an odd number of tenons and come in different tenon-counts. These generally vary between a 3, 5, 7 and very occasionally a 9 tenon-count. Examples of a concave and a convex lens. These lenses are actually made from glass but most modern lenses are made from CR39 plastic.