YT810 Anti-Fog Testing Instrument
| Origin | Taiwan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Domestic Origin Classification | China-sourced (Taiwan) |
| Model | YT810 |
| Pricing | Available Upon Request |
Overview
The YT810 Anti-Fog Testing Instrument is an engineered metrology system designed for objective, repeatable assessment of anti-fog performance in optical lenses and transparent substrates used in eyewear, safety goggles, medical face shields, and automotive visors. It operates on the principle of controlled condensation induction followed by quantitative evaluation of fog formation kinetics and dissipation behavior under standardized thermal and humidity gradients. The instrument replicates real-world fogging conditions—such as rapid temperature differentials between warm, humid exhaled air and cooler lens surfaces—enabling laboratory-grade validation of surface treatments, hydrophilic coatings, and nanostructured anti-fog films. Compliance with EN 168:2022 (“Personal eye-protection — Specifications”) ensures alignment with the European regulatory framework for protective eyewear, specifically Clause 7.3.2 addressing anti-fogging requirements for lenses intended for use in high-humidity or high-exhalation environments.
Key Features
- Programmable environmental chamber with precise control over temperature (range: 15–40 °C ±0.3 °C) and relative humidity (30–95% RH ±2% RH), enabling reproducible fog initiation protocols.
- Dual-phase test cycle: (1) Fog generation phase using saturated steam injection at defined dew-point differential; (2) Fog clearance phase monitored via high-resolution time-lapse imaging with integrated backlighting and contrast-based fog density scoring.
- Automated optical evaluation module featuring a calibrated CCD camera system (12-bit dynamic range, 5-megapixel resolution) synchronized with illumination control to quantify fog coverage area (%) and average optical transmittance loss (ΔT%) over time.
- Modular sample holder accommodating plano and curved lenses (up to ±8 D base curve) with adjustable clamping force and centering mechanism to ensure consistent positioning and minimize edge artifacts.
- Robust mechanical architecture with stainless-steel chamber interior, corrosion-resistant components, and sealed vapor path design to prevent cross-contamination and ensure long-term calibration stability.
- Compliance-ready test sequence logic preconfigured to EN 168 Annex A (Anti-fogging Test Method), including mandatory dwell times, thermal ramp rates, and pass/fail criteria based on maximum allowable fog area after 10 seconds and full clearance within 30 seconds.
Sample Compatibility & Compliance
The YT810 accommodates flat and curved optical substrates up to Ø80 mm diameter and 12 mm thickness, including polycarbonate, CR-39, Trivex, and glass lenses with or without AR/anti-fog dual-layer coatings. Sample mounting is non-destructive and requires no adhesive or surface modification. All test procedures are fully traceable to EN 168:2022, with documentation support for ISO/IEC 17025-accredited laboratories. The system meets essential requirements for GLP-compliant testing environments, including audit-trail logging of operator actions, environmental parameter deviations, and result timestamps. While not FDA-certified as a medical device, test data generated on the YT810 is routinely accepted in CE marking technical files and US OSHA-aligned safety certification submissions.
Software & Data Management
Controlled via the dedicated YT-Control Suite v3.2 (Windows 10/11 compatible), the software provides intuitive workflow navigation, real-time environmental monitoring, and automated report generation compliant with ISO 10012 and ASTM E2500 guidelines. Raw image sequences, fog-area vs. time curves, and transmittance decay profiles are stored in vendor-neutral TIFF and CSV formats. Audit trails include user login records, method version IDs, calibration certificate references, and electronic signatures per FDA 21 CFR Part 11 requirements when configured with validated digital signature modules. Data export supports integration into LIMS platforms via HL7 or ASTM E1384 interfaces.
Applications
- Quality assurance of anti-fog coated lenses during batch release in OEM manufacturing.
- R&D evaluation of novel hydrophilic polymer formulations and plasma-enhanced surface modifications.
- Comparative benchmarking of competitive anti-fog technologies under identical climatic stress conditions.
- Stability testing of coating durability after abrasion, detergent exposure, or UV aging per EN 166 and ISO 8980-2 protocols.
- Technical support for regulatory submissions requiring EN 168-conformant anti-fog verification data.
FAQ
Does the YT810 comply with any standards beyond EN 168?
Yes—the instrument’s test methodology aligns with supplementary clauses in EN 166 (personal eye protection), ISO 14889 (coating adhesion assessment), and ASTM F2527 (fog resistance of medical face shields). Custom test protocols can be developed for internal specifications.
Can the YT810 test lenses with complex curvature or multifocal designs?
It supports base curves from −8 D to +8 D and accommodates progressive addition lenses (PALs) and occupational lenses, provided the optical zone fits within the 60-mm central measurement field.
Is calibration traceable to national metrology institutes?
Temperature and humidity sensors are factory-calibrated against NIST-traceable references; annual recalibration services include DAkkS or CNAS-accredited certificates upon request.
What maintenance is required for long-term operational reliability?
Routine tasks include quarterly steam generator descaling, biannual optical path inspection, and annual verification of chamber seal integrity and sensor drift—documented in the included Maintenance Logbook and supported by remote diagnostics.
