OM01-C15 Reflective/Beam-Splitting Mirror Mount

Overview

The OM01-C15 Reflective/Beam-Splitting Mirror Mount is a precision-engineered kinematic optical adjustment platform designed for stable, repeatable angular alignment of small-diameter reflective optics in laboratory, metrology, and photonics integration environments. Based on a compact, open-frame architecture, it employs a dual-point kinematic mounting principle—combining a central retaining ring with axial preload via a high-cycle-life disc spring—to secure Ø15 mm mirrors or beam splitters while preserving optical surface integrity and minimizing stress-induced wavefront distortion. Unlike rigid clamping solutions, the OM01-C15’s spring-assisted retention system provides controlled, low-hysteresis release and re-engagement during iterative alignment procedures, making it especially suitable for applications requiring frequent optic exchange or fine-tuning under ambient or temperature-stabilized conditions. Its lightweight (0.1 kg), corrosion-resistant anodized aluminum construction ensures mechanical stability without thermal mass penalty, supporting compatibility with vibration-isolated optical tables and compact optomechanical assemblies.

Key Features

• Open-frame design enables unobstructed access to mirror surfaces and adjacent optical paths—critical for collimation verification, beam profiling, and multi-element alignment.
• Threaded retaining ring with integrated DIN 2093-grade disc spring delivers consistent clamping force (±3% repeatability over 10⁴ cycles), eliminating torque-dependent variability common in standard set-screw mounts.
• Single-axis angular adjustment mechanism offers ±5° total range with sub-arcminute resolution when used with calibrated micrometer drives (e.g., Thorlabs KM100 or Newport U-518 series).
• Standardized mounting interface: two Ø4.5 mm counterbored holes (Ø7.2 mm × 6 mm depth) conform to ISO 8015 geometric tolerancing and align with PH-series post holders and BP-series baseplates.
• Optimized for Ø15 mm optics (3–6 mm thick), including protected aluminum, dielectric-enhanced, and broadband polarizing beam splitters—verified per ISO 10110-7 surface quality standards.
• Zero-tool assembly: retaining ring engagement requires only a standard 5 mm hex key; no additional adapters or shims needed for nominal configuration.

Sample Compatibility & Compliance

The OM01-C15 mount accommodates industry-standard Ø15 mm optical components—including metallic mirrors, fused silica substrates, and thin-film-coated beam splitters—without inducing edge chipping or center-thickness deformation. Its clamping geometry maintains ≤0.5 µm radial runout across the full adjustment range, as verified by interferometric testing (Zygo GPI XP). The mount complies with ISO 9001:2015 manufacturing controls and meets RoHS Directive 2011/65/EU material restrictions. While not certified to ISO/IEC 17025, its dimensional tolerances (±0.02 mm on critical bores and ±0.1° on adjustment axis orthogonality) are traceable to NIST-calibrated CMM measurements. It is routinely deployed in setups aligned to ISO 11146 (laser beam parameters) and ISO 10110-1 (optical element drawing standards).

Software & Data Management

As a passive mechanical component, the OM01-C15 does not incorporate embedded electronics or firmware. However, it integrates seamlessly into automated optical alignment workflows when paired with motorized actuators (e.g., Zaber T-LSM series) and control platforms such as LabVIEW™, MATLAB® Instrument Control Toolbox, or Python-based PyVISA frameworks. Alignment logs—including actuator step counts, encoder feedback, and timestamped position metadata—can be archived in HDF5 or CSV formats compliant with FAIR data principles. For GLP/GMP-regulated environments, audit trails may be generated using third-party middleware (e.g., National Instruments DIAdem) that supports 21 CFR Part 11 electronic signature requirements when linked to validated motion controllers.

Applications

• Laser cavity alignment in diode-pumped solid-state (DPSS) and fiber-coupled systems
• Interferometer reference arm stabilization (Michelson, Mach–Zehnder)
• Beam steering in optical coherence tomography (OCT) sample arms
• Multi-channel spectral filtering setups using dichroic mirrors
• Educational optics labs requiring robust, student-safe mirror positioning
• Integration into OEM photonic modules where space-constrained, tool-free optic servicing is required

FAQ

What mirror thicknesses are supported by the OM01-C15 mount?

Standard operation is validated for mirrors 3–6 mm thick. Thinner substrates (≥2 mm) may be used with optional low-profile retaining rings (sold separately).
Is thermal drift compensated in the adjustment mechanism?

No active compensation is provided; however, the aluminum alloy housing (CTE ≈ 23.1 × 10⁻⁶ /K) and disc spring (CTE ≈ 11.5 × 10⁻⁶ /K) exhibit matched expansion behavior, limiting relative misalignment to <2 arcsec over 0–40 °C.
Can this mount be vacuum-compatible?

Yes—when assembled with stainless steel retaining rings and cleaned per ISO 14644-1 Class 5 protocols, it has been successfully deployed in UHV environments up to 10⁻⁷ mbar.
Does the mount include locking screws for permanent alignment?

No locking screws are integrated; however, the inherent friction of the adjustment pivot (hard-anodized Al-on-Al contact) provides sufficient static hold at angles ≤±3° under typical lab vibration conditions.
Are CAD models available for mechanical integration?

STEP (AP214) and IGES files are provided free of charge upon request and include GD&T annotations per ASME Y14.5–2018.