How to Mount Lenses Into Metal Frames: A Step-by-Step Guide
Mounting optical lenses into metal frames requires precision, care, and a clear understanding of the process to ensure the best fit and performance. Whether you're a seasoned optician or someone handling this task for the first time, this guide will walk you through the essential steps to mount lenses into metal frames efficiently.
Tools You Will Need:
- Optical screwdriver set
- Soft cloth or microfiber cleaning cloth
- Hand Edger
- Silicone nose pads (if needed)
- Lens cleaner solution
Step 1: Inspect the Frames and Lenses
Before starting, carefully inspect both the metal frame and lenses. Ensure the lenses are cut to fit the frame’s dimensions. Check the metal frame for any warping or misalignment that could impact the mounting process. Also, ensure you have the correct lens shape for the corresponding frame.
Step 2: Prepare the Frame
Metal frames often have screws at the temples or bridge that secure the lenses in place. Using a precision screwdriver, gently unscrew these areas. Be cautious not to damage or strip the screws, as they are often
delicate.
If the frame is tight, you can use a hand edger to gently take the lenses down slightly to fit it into the frame. However, be careful not to overdo it or you risk the lens being too loose within the frame and possible needing to do a remake.
Step 3: Insert the Lenses
Now that the frame is ready, align the lens with the frame's groove. Place the lens into the groove starting from the nasal or bridge side of the frame. Apply gentle pressure around the edges of the lens to ensure it fits snugly within the groove.
If the frame uses screws to hold the lens in place, carefully align the screw holes with the lens edge. Once aligned, screw the frame back together securely, but avoid over-tightening, as this can crack the lens or damage the frame.
Step 4: Adjust and Secure
Once the lens is inserted, inspect the frame to ensure the lens is seated correctly. The lens should not have any gaps between it and the frame, and it should sit flush with the frame's edges. If any part of the lens seems loose or misaligned, adjust it by applying even pressure to seat it fully.
Step 5: Final Inspection and Cleaning
After securing the lenses, inspect the entire frame for tightness and proper alignment. Check that the temples
open and close smoothly and the lenses are clean and clear. Use a microfiber cloth and lens cleaning solution to remove any smudges or fingerprints from the lenses.
If the frame includes nose pads, ensure they are adjusted to provide a comfortable fit for the wearer.
Pro Tips:
- Handle with care: Always use soft cloths and gentle pressure to avoid scratching or damaging the lenses.
- Watch the screws: Keep screws in a safe place while working. They are tiny and easy to lose.
- Use your hand edger cautiously: While hand edgers are great for helping to bring lenses down, the line between a perfect fit and too far is razor thin so edge with care.
Conclusion
Mounting optical lenses into metal frames requires patience and attention to detail, but with the right approach, it can be done successfully. By following these steps, you'll ensure a precise fit that provides comfort, durability, and clear vision for the wearer. Whether you're doing this professionally or for personal use, taking your time will lead to the best results. Check out my other blog going over the proper way to mount zyl frames.
