ZOLIX OMRS12.7/20/25/30-S Two-Axis High-Stability Mirror Mount

Overview

The ZOLIX OMRS12.7/20/25/30-S is a precision-engineered two-axis kinematic mirror mount designed for demanding optical alignment tasks in research laboratories, metrology setups, and industrial laser systems. Built on a monolithic stainless-steel base with hardened steel adjustment screws and low-hysteresis flexure hinges, it delivers exceptional thermal stability, mechanical rigidity, and long-term positional repeatability. Each variant—OMRS12.7-S, OMRS20-S, OMRS25-S, and OMRS30-S—is optimized for specific mirror diameters (12.7 mm, 20 mm, 25 mm or 25.4 mm, and 30 mm respectively), maintaining consistent ±3° angular adjustment range across all axes (pitch and yaw) without compromising resolution or load-bearing integrity. The mount operates on a differential micrometer principle, enabling sub-arcminute angular control through fine-pitch (e.g., 0.25 mm/rev) stainless-steel screws with knurled ergonomic knobs. Its design conforms to standard optical breadboard hole patterns (M4 or 1/4″-20 tapped holes), facilitating seamless integration into modular optomechanical platforms.

Key Features

• Two orthogonal adjustment axes (pitch and yaw) with independent, backlash-free micrometer screws
• Monolithic stainless-steel body with stress-relieved machining for minimal thermal drift and high dimensional stability
• Hardened and ground adjustment screws with PTFE-coated threads for smooth, repeatable motion and reduced wear
• Optimized clamping geometry ensuring uniform radial pressure distribution—preventing optic deformation or coating damage
• Clear aperture exceeding 90% of clamping diameter, minimizing vignetting in collimated or convergent beam paths
• Integrated locking mechanism (dual setscrews per axis) for securing final alignment under vibration or thermal cycling
• Compatibility with standard Ø12.7 mm, Ø20 mm, Ø25 mm (or Ø25.4 mm), and Ø30 mm optics—including protected aluminum, dielectric, and UV-enhanced mirrors

Sample Compatibility & Compliance

The OMRS-S series accommodates plano and slightly curved mirrors (radius > 500 mm) with thicknesses ranging from 3 mm to 12 mm, provided surface flatness meets λ/10 or better at 633 nm. It supports both front-surface and back-surface mounting configurations, with optional adapter plates available for kinematic mounting of uncoated substrates. While not certified to ISO 9001 or ISO 14001 out-of-the-box, the manufacturing process adheres to documented quality control protocols aligned with ISO 10110-7 (optical component mounting requirements) and MIL-STD-810G (mechanical shock and vibration resistance). All units undergo individual angular repeatability testing (≤ ±5 arcseconds over 10 full adjustment cycles) prior to shipment. No hazardous substances are used in construction; RoHS 3 compliance is verified per IEC 63000:2018.

Software & Data Management

As a purely mechanical alignment device, the OMRS-S series does not incorporate embedded electronics, sensors, or firmware. Consequently, it requires no drivers, configuration software, or data logging interfaces. Alignment parameters are recorded manually or integrated into lab notebooks compliant with GLP (Good Laboratory Practice) documentation standards. When deployed in automated optical benches—such as those using motorized stages controlled by LabVIEW, Python (PyVISA), or MATLAB—the mount serves as a passive but critical node in traceable alignment workflows. Its mechanical reproducibility enables correlation between manual adjustments and coordinate-based system calibration models, supporting ISO/IEC 17025-accredited measurement uncertainty budgets where angular positioning contributes ≤ 0.1% to total path deviation error.

Applications

• Laser cavity alignment in DPSS, Ti:sapphire, and fiber-coupled systems
• Interferometric setup stabilization for Michelson, Mach–Zehnder, and Sagnac configurations
• Beam steering and pointing correction in free-space quantum optics experiments
• Alignment of off-axis parabolic mirrors and reflective objectives in ultrafast spectroscopy
• Integration into OEM laser processing heads requiring field-serviceable, non-motorized angular tuning
• Calibration reference mounts in NIST-traceable optical metrology labs

FAQ

What is the maximum recommended mirror weight for each OMRS-S variant?

For optimal stability and angular repeatability, the recommended maximum mirror mass is 120 g (OMRS12.7-S), 200 g (OMRS20-S), 250 g (OMRS25-S), and 300 g (OMRS30-S). Exceeding these limits may reduce resolution and increase settling time after adjustment.
Can the OMRS-S be used in vacuum environments?

Yes—when specified with vacuum-compatible hardware (e.g., stainless-steel fasteners, no anodized coatings, and dry-lubricated screws), the mount has been validated for operation at pressures down to 1×10⁻⁶ mbar. Standard units are rated for ambient conditions only.
Is there a version with motorized actuators?

ZOLIX offers the OMRS-M series as a direct motorized counterpart, featuring integrated stepper motors, encoder feedback, and RS-485/USB-C interface for closed-loop position control. The OMRS-S remains strictly manual for applications prioritizing simplicity, EMI immunity, and zero power dependency.
How is angular resolution quantified for this mount?

Based on screw pitch (0.25 mm/rev) and lever arm geometry, theoretical angular resolution is ~8 arcseconds per 1/100th turn of the knob. Empirical verification under controlled conditions yields ≥12 arcseconds repeatability over repeated adjustments.
Are replacement parts such as adjustment screws or spring washers available separately?

Yes—ZOLIX provides a full spare parts catalog including calibrated micrometer screws, phosphor-bronze compression springs, and M4 × 0.7 threaded inserts, all traceable to original manufacturing lot numbers for audit readiness.