JingCe JC2000Y Advanced Contact Angle Goniometer for Optical Lens Characterization

Overview

The JingCe JC2000Y Advanced Contact Angle Goniometer is an engineered solution for high-precision interfacial characterization of optical components—specifically designed for ophthalmic lenses, intraocular lenses (IOLs), AR-coated substrates, and polymer-based optical elements. It operates on the fundamental principle of sessile drop analysis, where a precisely dispensed liquid droplet is imaged at the solid–liquid–air interface, and contact angle values are determined via geometric analysis of the droplet profile. The system supports both static and dynamic measurements—including advancing, receding, and rolling angles—to quantify wettability hysteresis and surface heterogeneity. Its modular architecture integrates optomechanical stability, thermal controllability (optional), and programmable fluid handling to meet the stringent reproducibility requirements of ISO 1420, ASTM D7334, and ISO 15989 standards for surface energy assessment in regulated optical manufacturing environments.

Key Features

• Optimized concentric stepped sample stage: Enables rapid, repeatable positioning of lenses with diameters ranging from 8 mm to 70 mm without re-leveling or alignment recalibration.
• Manual XYZ translation stage (50 mm × 50 mm × 10 mm travel; 0.1 mm resolution) with independent fine-adjustment controls for precise droplet placement relative to lens curvature.
• High-fidelity optical path: Continuous 0.7×–4.5× zoom lens with calibrated pixel-to-length mapping (50–318 px/mm), coupled with a 700-line industrial CCD camera capturing at 25 fps—sufficient for dynamic wetting kinetics under standard conditions.
• Programmable dispensing system: High-accuracy manual micro-syringe (10 µL / 100 µL options) with software-controlled volume delivery (±0.1 µL resolution) and optional fast-triggered image capture during deposition.
• Dual-axis tilt platform: Manual inclination adjustment for gravity-compensated measurements on non-horizontal surfaces and validation of Young’s equation compliance.
• Expandable hardware ecosystem: Supports optional heated stage (RT–100 °C), ±15° oscillation stage for contact angle hysteresis profiling, 360° vertical/horizontal rotation for anisotropic surface mapping, and specialized fixtures (fiber clamps, fabric stretch frames, slide holders).

Sample Compatibility & Compliance

The JC2000Y accommodates rigid and semi-rigid planar or curved optical substrates—including CR-39, polycarbonate, Trivex®, silicone hydrogel lenses, and anti-reflective coated glass. Its mechanical design avoids edge interference during droplet placement on beveled or chamfered lens peripheries. All measurement protocols align with internationally accepted test frameworks: ASTM D7334 (surface energy of plastics), ISO 1420 (rubber—determination of surface wettability), and ISO 15989 (contact angle measurement for medical devices). Data acquisition and reporting support GLP-compliant audit trails when integrated with validated software versions compliant with FDA 21 CFR Part 11 requirements (via optional electronic signature module and user-access logging).

Software & Data Management

The proprietary JC2000Y analysis suite provides deterministic algorithms for multiple measurement modes: tangent-based goniometric analysis, height-based Young–Laplace fitting, five-point spline interpolation for dynamic angle tracking, and automated image segmentation with manual override capability. Surface energy calculation implements the Owens–Wendt two-liquid method (water + diiodomethane), with optional extensions for van Oss–Chaudhury–Good and Fowkes models. Video sequences (AVI format) are timestamped and stored with metadata (volume, time, temperature, stage coordinates). Interval capture supports long-term aging studies (1 s–3600 s intervals), while database management enables batch export to CSV, Excel, or LIMS-compatible XML schemas. Software updates are provided free of charge for the lifetime of the instrument, ensuring compatibility with evolving regulatory documentation standards.

Applications

• Quality control of hydrophobic/hydrophilic lens coatings during production line validation.
• Surface energy mapping of multi-layer AR coatings to identify delamination risk zones.
• Batch-to-batch consistency verification of plasma-treated polymer lenses prior to packaging.
• Research into protein adsorption resistance by correlating contact angle hysteresis with fouling propensity.
• Development of self-cleaning optical films using dynamic contact angle trends under controlled humidity.
• Validation of cleaning efficacy in reusable ophthalmic instruments via post-wash surface energy recovery analysis.

FAQ

Does the JC2000Y support automated stage movement?

Yes—optional motorized XYZ translation and programmable sample rotation stages are available as factory-installed upgrades. Standard configuration includes manual precision micrometers with 0.1 mm resolution.

Can it measure contact angles on concave or convex lens surfaces?

Yes—the software includes dedicated curvature compensation algorithms that correct for spherical aberration and perspective distortion in both sessile and pendant drop configurations.

Is surface tension measurement included?

Yes—pendant drop analysis is fully implemented for calculating liquid surface tension and interfacial tension between immiscible liquids.

What calibration standards are recommended?

Certified contact angle reference slides (e.g., PTFE, silicon wafer, borosilicate glass) with traceable NIST-traceable angle values are advised for routine performance verification.

How is data integrity ensured for regulatory submissions?

When configured with audit trail-enabled software and user role management, the system meets ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate) required for FDA and EMA submissions.