PLX stainless steel Ball Mounted Hollow RetroreflectorsTM (BMRTM) are the industry standard for the highest performance. 



  • Longest laser tracking range & performance due to superior optical accuracy.
  • Stainless steel ball material with sphericity of 0.00005".
  • Guaranteed compatibility with laser tracking systems from all major manufacturers.
  • Custom "Knife Edge" design option available upon request, enhances beam quality, eliminates the cause of obscuration.
  • PLX is a registered ISO 9001 company.

Ball Mounted Hollow Retroreflectors™ (BMR™)

Ask a Question

PLX BMR™ enables the longest tracking range due to their superior optical accuracy. Available in 2 centering accuracy options: within .0005" and within .0001". 

PLX Ball Mounted Hollow Retroreflectors (BMR™) are the industry standard for highest performance in the laser tracking market.

They are manufactured in three different diameters: 1 1/2", 7/8" and 1/2". Should the optical elements of your BMR™ ever become damaged, PLX can replace them with units of comparable accuracy and alignment to the original at a modest cost. 

Backed by PLX's history of superior quality BMR™.

Specification Chart
Model Ball Diameter
Retroreflector Clear Aperture
BMR-1.5 BMR-1.5 1.50 1 within .0001 - .0005 168
BMR-0.875 BMR-0.875 0.875 0.5 within .0001 - .0005 32
BMR-0.5 BMR-0.5 0.5 0.31 within .0001 - .0005 6
Download our product datasheet

Ball Material: Stainless Steel with sphericity of 0.00005".

Retroreflector Apex: positioned within either .0005" or .0001" of the center of the ball as specified.

Retroreflector Mirror Coating: Protected silver.