Get accurate, repeatable 3D measurements with this 1.5 inch SMR reflector, a spherically mounted retroreflector (SMR) built for industrial metrology, aerospace alignment, and precision engineering.Â
Designed to work seamlessly with Leica, FARO, API, and Hexagon laser tracker systems, this reflector combines a hardened steel sphere with a precision-ground corner-cube prism for consistent beam return accuracy at long range.
Whether you’re running dimensional inspections on the shop floor or performing large-volume aerospace alignment, this SMR delivers the centering accuracy and durability your laser tracker workflow demands.
Why Choose This 1.5″ SMR Reflector
Precision Optics
K9 optical glass corner-cube prism with multi-layer coating for minimal beam deviation
Durable Construction
440C hardened magnetic steel sphere resists wear and maintains sphericity over time
Universal Compatibility
Works with Leica, FARO, API, and Hexagon laser tracker systems
Protective Red Ring
Shields the prism edge from impact damage during handling
Magnetic Mounting
Attaches securely to any ferrous nest, tripod, or mounting surface
Technical Specifications
| Specification | Value |
| Sphere Diameter | 1.5 inch / 38.1 mm |
| Sphere Material | 440C Hardened Magnetic Steel |
| Optic Type | K9 Optical Glass Corner-Cube Prism |
| Beam Deviation | ≤ 5 arcsec |
| Working Range | Up to 80 m |
| Centering Error | 0.001 in / 0.0254 mm |
| Roundness Error | 0.02 mm |
| Aperture | 1 inch |
| Absolute Constant | 0 mm |
| Height Offset (with drift nest) | 25.4 mm (1 inch) |
| Height Offset (SMR alone) | 19.05 mm |
| Compatibility | Leica, FARO, API, Hexagon laser trackers |
Ideal Applications
- Industrial metrology and quality inspection
- Aerospace and automotive alignment
- Large-scale dimensional measurement
- Reverse engineering and CMM verification
- Tooling and fixture calibration
Frequently Asked Questions
What is an SMR (Spherically Mounted Retroreflector)?
An SMR also known as a TMR, CCR, Ball RetroReflector, BMR, or Retro Reflector is a precision optical target used with laser trackers. It reflects the tracker’s laser beam back to its source, allowing the system to calculate precise 3D coordinates.
Is this reflector compatible with my laser tracker brand?
Yes. This 1.5″ SMR follows industry-standard 38.1mm sphere and 25.4mm offset specifications, making it compatible with Leica, FARO, API, Hexagon, and most other major laser tracker brands.
How do I care for my SMR reflector?
Store it in its protective case when not in use, avoid drops onto hard surfaces, and keep the optical surface clean and free of dust or fingerprints for best performance.
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