What kind of edger should you use to process lens-over-frame sunglasses
Recently, lens-over-frame sunglasses have gained significant attention from consumers thanks to their stylish and unique design. This type of eyewear, where the lens sits over the frame, combines fashion with functionality and continues to grow in popularity. However, due to its complex structure and the precision requiredduring processing, extra care and expertise are essential.
So today, we’re going to look at some important tips you should keep in mind when processing lens-over-frame sunglasses.
Why is it challenging to process lens-over-frame sunglasses?
Lens-over-frame sunglasses are more difficult to process because their structure differs from that of standard frames. Unlike conventional sunglasses, where the lens sits inside the frame (inset design), this style features lenses that extend over the outer edge of the frame. As a result, securing the lens becomes more challenging and may lead to instability when worn.
In particular, if the edges of the lens do not align precisely with the frame, the lens may lift or fail to stay firmly in place. That’s why accurate measurement and deep bevel edging are essential when processing these types of sunglasses.
What should you watch out for when processing lens-over-frame sunglasses?
1. Check the Lens Specifications
For lens-over-frame sunglasses, lenses with a base curve of 0 to 2 and a refractive index between 1.60 and 1.71 are recommended. To reflect the characteristics of sunglasses properly, it’s important to choose low-curve lenses. Additionally, selecting lenses with an appropriate refractive index helps prevent breakage when reinserting the lens into the frame. These considerations are essential for achieving a safe and stable finish.
2. Measure Bevel Thickness and Height Accurately
For lens-over-frame sunglasses, it is crucial to precisely measure the bevel thickness and height to match the frame. If the inner part of the frame and the size of the lens do not align perfectly, the lens may not fit properly or could lead to an unstable wearing experience. Inaccurate fitting increases the risk of the lens shaking or falling out, so precise bevel measurements are essential for safety and stability.
3. Be Careful During Lens Cutting
Accurate cutting is essential to ensure that the lens edges fit properly within the frame. If the bevel depth is incorrect, the lens may not sit securely or may not align well with the frame. This can result in poor fixation or discomfort for the wearer. Processing the lens with the correct bevel depth is important not only for functionality but also for the overall appearance of the sunglasses. Extra care is needed to ensure both stability and aesthetics
Lens-Over-Frame Sunglasses Processing Tips
By choosing the Huvitz HPE-990, you can handle the complex processing of lensover-frame sunglasses with greater accuracy and efficiency. With its advanced Deep Step Bevel technology, the HPE-990 enables precise bevel edging for optimal results. This feature allows you to produce higher-quality lens-over-frame sunglasses with confidence.
Learn More About the Core Technologies of the Huvitz HPE-990 Discover the key technology behind precise processing of lens-over-frame sunglasses with the Huvitz HPE-990.
Click the link below for more details.
With the Huvitz HPE-990 you can deliver perfectly finished products to your customers
