Red Star Yang LBZ50A 60 mm Cage-System Rotational Optical Mount

Overview

The Red Star Yang LBZ50A is a precision-engineered 60 mm cage-system rotational optical mount designed for stable, repeatable angular positioning of circular optics—such as mirrors, waveplates, polarizers, and filters—in modular optical benches and laser alignment platforms. Based on the widely adopted 60 mm center-to-center cage standard, this mount enables full 360° continuous rotation about the optical axis, with a clearly marked 1° graduation scale for manual angular referencing. Constructed from aerospace-grade 6061-T6 aluminum alloy, it balances high mechanical rigidity with low thermal expansion and excellent machinability. The mount’s coaxial design ensures minimal beam deviation during rotation, preserving collimation integrity in sensitive interferometric or polarization-sensitive setups. Its black anodized surface provides corrosion resistance, enhanced durability, and reduced stray light reflection—critical for low-noise optical measurements.

Key Features

• Full 360° continuous rotation with 1° engraved angular scale for visual alignment verification
• Two interchangeable clamping configurations: LBZ50A (closed-set-screw type) accommodates optics ≥7.9 mm thick; LBZ50B (closed-retaining-ring type) supports optics up to 12.8 mm thick—all centered on a precise Ø50.8 mm (2″) bore
• Four Ø6 mm through-holes arranged on a rigid 60 × 60 mm square grid, enabling secure integration into standard 60 mm cage systems
• Side-mounted M3 grub screws provide positive locking of Ø6 mm cage rods without slippage or torsional play
• M4 threaded base allows direct attachment to Ø12 mm or Ø25 mm support posts, facilitating vertical stacking or multi-axis kinematic configurations
• Black anodized finish meets ISO 8502-3 surface cleanliness requirements for cleanroom-compatible optical hardware

Sample Compatibility & Compliance

The LBZ50A/B mounts are optimized for circular optical components with nominal diameters of Ø50.8 mm (2″), including dielectric mirrors, quartz waveplates, calcite Glan-Taylor prisms, and broadband antireflection-coated windows. Both variants maintain ≤±15 arcsec runout over full rotation when mounted on certified flat surfaces—verified per ISO 10110-7 tolerancing guidelines. The mount complies with mechanical interface standards aligned with Thorlabs’ CPxx and Newport’s KMxx cage architecture, ensuring cross-platform interoperability. No proprietary tools or adapters are required for integration. All fasteners conform to ISO 4762 (metric socket head cap screws) and ISO 4026 (grub screws), supporting traceable assembly in GLP/GMP-aligned laboratories.

Software & Data Management

This is a purely mechanical, manually operated optical mount with no embedded electronics, firmware, or digital control interface. As such, it requires no driver installation, calibration software, or firmware updates. Angular position data is recorded manually via the engraved scale or external metrology tools (e.g., autocollimators, rotary encoders, or vision-based alignment systems). For labs implementing electronic audit trails under FDA 21 CFR Part 11 or ISO/IEC 17025, position logs may be entered into validated LIMS or ELN platforms using standardized templates. Documentation—including dimensional drawings, material certificates (EN AW-6061 T6 per EN 573-3), and anodizing thickness reports (≥15 µm per MIL-A-8625 Type II)—is available upon request for quality system compliance.

Applications

• Laser cavity alignment and intra-cavity polarization control in DPSS and ultrafast oscillator systems
• Rotational scanning of birefringent elements in ellipsometry and Mueller matrix characterization
• Angle-resolved reflectance/transmittance measurements in spectroscopic setup integration
• Multi-axis kinematic mounts for optical null testing and interferometer quadrature adjustment
• Educational optics labs requiring robust, serviceable components compliant with undergraduate and graduate curriculum safety standards
• Modular OEM integration where space-constrained, tool-free optic reorientation is required without motorization

FAQ

Does the LBZ50A support motorized rotation?
No—this is a manual, non-motorized mount. For automated angular positioning, users must integrate third-party stepper/servo stages compatible with its M4 base thread and Ø50.8 mm central bore.
Can I use this mount with 30 mm cage systems?
No—the LBZ50A is dimensionally specific to the 60 mm cage standard. Red Star Yang offers a separate LBZ30 series for 30 mm systems.
Is the anodized layer electrically insulating?
Yes—the black anodized coating provides >100 MΩ surface resistivity at 100 V DC, satisfying electrostatic discharge (ESD) mitigation requirements in laser lab environments per ANSI/ESD S20.20.
What torque specification should be used for the M3 grub screws?
Maximum recommended tightening torque is 0.3 N·m to prevent thread galling in aluminum while ensuring rod retention under static loads up to 5 kg.
Are dimensional drawings and RoHS/REACH declarations available?
Yes—certified engineering drawings (PDF + STEP), material test reports, and EU regulatory compliance documentation are provided upon formal request with purchase order reference.