HTVH-02 Adjustable Height Optical Post Holder with Magnetic Base
| Brand | Han Ding (HT) |
|---|---|
| Origin | Jiangsu, China |
| Model | HTVH-02 |
| Adjustment Range | 90–120 mm |
| Mounting Hole Diameter | 12.5 mm |
| Base Type | Integrated Permanent Magnet Base |
| Compatibility | Designed for HTR-series posts |
| Locking Mechanism | Dual-lock (post clamp + height lock) |
| Material | Anodized aluminum alloy |
| Surface Finish | Black anodized, corrosion-resistant |
Overview
The HTVH-02 Adjustable Height Optical Post Holder is a precision-engineered mechanical mounting solution designed for stable, repeatable vertical positioning of optical components in laboratory and research-grade optical setups. Built upon the principles of kinematic stability and mechanical rigidity, this post holder employs a dual-locking architecture—featuring independent clamping of both the vertical support rod and the internal micrometer-adjustable升降 mechanism—to ensure zero drift under static load and minimal hysteresis during repeated height repositioning. Its core functionality centers on maintaining fixed angular orientation (i.e., azimuthal and pitch alignment) while varying vertical position—a critical requirement in interferometric alignment, beam-height matching across multi-stage optical paths, and co-linear cavity construction. The 12.5 mm central through-hole conforms to ISO-standard optical post diameters, enabling seamless integration with HTR-series rods and other industry-compatible 12.5 mm diameter accessories.
Key Features
- Dual-locking design: Independent mechanical locks for both the main support rod and the height-adjustment sleeve prevent unintended slippage or torsional misalignment during operation.
- Precision-threaded height adjustment: A fine-pitch stainless-steel lead screw enables smooth, backlash-free vertical translation over the full 30 mm range (90–120 mm), with tactile feedback confirming secure engagement at any set point.
- Fixed-phase angular retention: Height adjustment does not induce rotation or tilt of the mounted component; angular orientation remains invariant across the entire travel range—essential for polarization-sensitive or collimation-critical applications.
- Integrated neodymium magnet base: Provides rapid, tool-free mounting onto ferromagnetic optical tables or breadboards (e.g., steel-surface platforms). Magnetic flux density is calibrated to ensure strong adhesion without compromising nearby magnetic media—users are advised to maintain ≥50 mm clearance from analog watches, magnetic storage devices, and Hall-effect sensors.
- Corrosion-resistant construction: CNC-machined from 6061-T6 aluminum alloy and finished with hard-anodized black coating (ASTM B580 Type II), ensuring long-term dimensional stability and resistance to oxidation in controlled lab environments.
Sample Compatibility & Compliance
The HTVH-02 is compatible with all standard 12.5 mm (0.5″) diameter optical posts—including those from Thorlabs, Newport, and custom HTR-series rods—and accepts standard M4 and M6 threaded top plates via its upper mounting surface. It complies with common mechanical interface standards used in academic and industrial photonics labs, including ISO 80000-4 (quantities and units for mechanics) and VDI/VDE 2634 Part 2 (optical measuring systems). While not certified to ISO/IEC 17025 as a metrological instrument, its repeatability (±2 µm over 100 cycles, per internal validation under 2 N axial load) supports GLP-aligned experimental workflows where mechanical consistency is prerequisite to optical measurement integrity.
Software & Data Management
As a passive mechanical mount, the HTVH-02 requires no firmware, drivers, or software integration. Its operational parameters are fully deterministic and manually controlled—eliminating dependencies on proprietary control ecosystems. All dimensional specifications, torque limits (recommended clamping torque: 0.8–1.2 N·m), and material certifications are documented in the included English-language technical datasheet (Rev. 2024.03), which adheres to IEC 61000-6-3 EMC immunity guidelines for lab equipment ancillaries. Traceability documentation—including batch-specific machining logs and surface finish verification reports—is available upon request for QA/QC audits.
Applications
- Beam height leveling in multi-pass interferometers (e.g., Mach–Zehnder, Michelson configurations)
- Vertical alignment of laser diodes, photodetectors, and fiber collimators within free-space coupling stations
- Staged positioning of optical filters, waveplates, and polarizers in polarization-resolved spectroscopy setups
- Adjustable mounting for CCD/CMOS imaging sensors in custom-built spectral imaging rigs
- Modular integration into teaching kits for undergraduate optics laboratories (e.g., MeOS-style pedagogical platforms)
FAQ
Is the magnetic base suitable for use on aluminum optical tables?
No—the integrated neodymium magnet base requires a ferromagnetic surface (e.g., low-carbon steel) for effective adhesion. Aluminum, granite, or composite breadboards require optional steel adapter plates (sold separately).
Can the HTVH-02 be used in vacuum environments?
Not without modification: standard anodization and adhesive-free assembly permit bake-out to ≤60 °C at 10⁻⁵ mbar; however, outgassing characterization data is not provided—consult engineering support prior to UHV deployment.
What is the maximum recommended load capacity?
Static load limit is 5 kg when centered on the 12.5 mm bore axis; lateral loads exceeding 0.3 N at the top surface may compromise height-lock integrity.
Does it include mounting hardware?
Yes—each unit ships with two M4 × 8 mm cap screws for securing top plates and a hex key (2 mm) for all adjustment points.
Is calibration certification available?
Dimensional inspection reports (per ASME Y14.5) are available at no cost; NIST-traceable calibration is not offered, as the device functions as a mechanical reference—not a measuring instrument.
