Borofloat 33 レーザーミラー、Al-MgF2コーティング

The front-surface coating is doing exactly what I needed—my beam reflections are crisp and clean with no ghosting through the MgF2 layer. Set it up in my optical bench yesterday and the alignment held perfectly for a full session. Solid build for the price.

Swapped this in for the stock mirror in my CO2 laser and the difference in beam alignment is obvious right away. The Al coating with the MgF2 overcoat holds up well even after a few weeks of daily cutting. Reflectivity is right where I need it.

The Borofloat 33 substrate is incredibly flat, and the Al-MgF2 coating delivers sharp, consistent reflections. Exactly what I needed for aligning my laser path.