專業Total Reflectors廠商

 ULO Optics manufactures Silicon and Copper mirrors and phase retarders, with different configurations specifically designed for high and low power lasers.

For more information:

    ● Mirrors
   ● Phase Retarders

Dimensional tolerances for standard lenses, windows and mirrors are as follows:
   
   ● Diameter: +0/-0.1 mm for most diameters, +0/-0.05 mm for 1.5" lenses
   ● Centre thickness: +/-0.1 mm
   ● Edge thickness variation: most lenses within 0.03 mm and some within 0.05 mm
   ● Focal length: +/-0.5%. Some long focal singlet scanning lenses can be 1 to 2% due to highly meniscus
      shape
   ● Surface form: typically less than 1 visible fringe on a 38 mm diameter test area
   ● Surface roughness: within 20 Å rms

Tighter tolerances are possible on custom optics. Sometimes they are interrelated if very tight, e.g. the achievable flatness on a window can depend on the thickness (rigidity).