Hoenle LED Power Pen 2.0 UV Curing Point Source
| Brand | Hoenle |
|---|---|
| Origin | Germany |
| Model | LED Power Pen 2.0 |
| Wavelength | 365 nm ±10 nm |
| Power Supply | External AC/DC adapter (included, worldwide voltage compatible) |
| Activation | Manual pressure switch on unit |
| Optional Control | Dry-contact PLC input or footswitch interface |
| Safety Features | Integrated thermal cutoff and internal current regulation |
| Compliance | CE-marked, RoHS-compliant, designed for industrial UV curing environments |
Overview
The Hoenle LED Power Pen 2.0 is a compact, hand-held, high-intensity point-source ultraviolet emitter engineered for precision photopolymerization and fluorescence excitation in controlled industrial and laboratory settings. Operating at a center wavelength of 365 nm ±10 nm, it leverages solid-state LED technology to deliver narrowband UV-A irradiance without broadband spectral contamination or infrared (IR) emission. Unlike mercury-vapor or arc-lamp-based UV sources, this device produces negligible radiant heat—enabling direct irradiation of thermally sensitive substrates including optical adhesives, thin-film sensors, biofunctionalized surfaces, and microfluidic devices. Its instantaneous on/off response eliminates warm-up and cooldown delays, supporting integration into automated assembly lines, inline quality control stations, and manual benchtop workflows where temporal and spatial dose control are critical.
Key Features
- Stable 365 nm ±10 nm monochromatic output optimized for peak absorption of common acrylate- and cationic-type photoinitiators (e.g., Irgacure 369, Darocur 1173)
- Zero IR emission: Surface temperature rise at target ≤1.5 °C under continuous operation (measured at 10 mm working distance), preserving substrate integrity
- Integrated pressure-actuated switch with tactile feedback for ergonomic single-hand operation
- Thermal protection circuitry automatically deactivates the LED array if internal junction temperature exceeds 85 °C
- Current-regulated driver ensures consistent irradiance output across input voltage fluctuations (100–240 VAC, 50/60 Hz)
- Optional external control interface supports dry-contact activation via PLC, footswitch, or machine vision trigger signal (24 VDC, isolated input)
- Real-time status monitoring via open-collector output signal synchronized with LED activation state
Sample Compatibility & Compliance
The LED Power Pen 2.0 is compatible with standard UV-curable formulations used in electronics encapsulation (e.g., Loctite 3311, DYMAX 9001), medical device bonding (ISO 10993-compliant adhesives), and optical component alignment. It meets EN 62471:2006 (Photobiological Safety of Lamps) for Risk Group 2 (RG2) UV-A sources when operated within recommended exposure durations and distances. The device carries CE marking per EU Machinery Directive 2006/42/EC and Electromagnetic Compatibility Directive 2014/30/EU. While not certified to FDA 21 CFR Part 11, its deterministic activation logic and absence of analog calibration drift support traceability in GMP-aligned processes when paired with external dosimetry (e.g., calibrated radiometers per ISO/IEC 17025-accredited labs).
Software & Data Management
The LED Power Pen 2.0 operates as a stand-alone hardware module with no embedded firmware or software dependencies. All operational parameters—including duty cycle, pulse width, and cumulative runtime—are managed externally via hardwired control signals or mechanical actuation. For process validation, users integrate third-party radiometric sensors (e.g., Ophir PD300-UV, International Light ILT2400) with data acquisition systems compliant with ASTM E2912-21 (Standard Practice for UV Radiant Exposure Measurement). Audit trails for activation events may be logged through PLC SCADA systems or LabVIEW-based controllers supporting timestamped digital I/O logging.
Applications
- Localized bonding of MEMS components, fiber optic ferrules, and camera modules in electronics manufacturing
- Spot-curing of biocompatible adhesives during catheter assembly and diagnostic cartridge fabrication
- Fluorescence excitation of quantum dot labels, FITC-conjugated antibodies, and europium chelates in analytical microscopy and lateral flow assay development
- Accelerated aging studies of polymer coatings and OLED encapsulants under controlled UV-A stress
- In-situ photopolymerization of hydrogels in microfabricated channels for organ-on-chip platforms
FAQ
Is the LED Power Pen 2.0 suitable for use in cleanroom environments?
Yes—its sealed housing (IP54-rated) and absence of outgassing materials make it compatible with ISO Class 5–7 cleanrooms when operated with appropriate static-dissipative gloves and grounding protocols.
Can irradiance intensity be adjusted?
No—output is fixed at nominal irradiance (~1,200 mW/cm² at 10 mm, typical). Intensity modulation must be achieved externally via pulse-width modulation of the activation signal or mechanical shuttering.
What is the expected lifetime of the LED array?
Rated for ≥10,000 hours at 25 °C ambient temperature and rated drive current, defined as L70 (70% of initial optical power output).
Does the device include radiometric calibration documentation?
No—calibration is performed by end users or accredited metrology laboratories using NIST-traceable reference detectors; Hoenle provides spectral emission data and beam profile diagrams upon request.
Is replacement of the LED module possible in-field?
No—the LED array is permanently bonded and thermally coupled to the heatsink; field service requires return to authorized Hoenle service centers.
