![Laser marking machine marks codes on glasses frames - Laser marking, welding and cutting machine | Triumphlaser Laser marking machine marks codes on glasses frames - Laser marking, welding and cutting machine | Triumphlaser](https://www.triumphlaser.com/wp-content/uploads/Laser-marking-machine-marks-codes-on-glasses-frames.jpg)
Laser marking machine marks codes on glasses frames - Laser marking, welding and cutting machine | Triumphlaser
![putting outwardly imperceptible, laser etched branding on prescription glasses so the always look like they have a smudge on them to the wearer. : r/assholedesign putting outwardly imperceptible, laser etched branding on prescription glasses so the always look like they have a smudge on them to the wearer. : r/assholedesign](https://preview.redd.it/vza3x6hrfjs11.jpg?auto=webp&s=af45f73dc073d2a6436390c9990d731601c8f0fe)
putting outwardly imperceptible, laser etched branding on prescription glasses so the always look like they have a smudge on them to the wearer. : r/assholedesign
![Any idea what these weird numbers and letters on prescription sunglasses lenses. Just bought these prescription sunglasses and they have these 2 alphanumeric on each of the lenses (circled). Are these normal, Any idea what these weird numbers and letters on prescription sunglasses lenses. Just bought these prescription sunglasses and they have these 2 alphanumeric on each of the lenses (circled). Are these normal,](https://i.redd.it/axfs9he3p2c51.jpg)