Solar Light 8-5103 Sandblasted PMMA Diffuser Plate

Overview

The Solar Light 8-5103 Sandblasted PMMA Diffuser Plate is a precision-engineered optical component designed for consistent, repeatable light diffusion in spectroscopic and radiometric measurement systems. Constructed from high-transmission, UV-stable polymethyl methacrylate (PMMA), this plate functions as a calibrated scattering surface that homogenizes incident radiation—particularly in UV-A, UV-B, visible, and near-UV spectral regions—prior to detection by spectroradiometers, photometers, or integrating sphere input ports. Its sandblasted surface morphology is controlled to achieve a defined arithmetic mean roughness (Ra) of 5 µm per ISO 4287 and ISO 25178 standards, ensuring predictable Lambertian-like scattering behavior with minimal specular reflection. Unlike molded or polished PMMA variants, the sandblasted finish provides isotropic diffusion characteristics critical for angular response correction, cosine error minimization, and spatial uniformity validation in field-deployable and laboratory-grade optical calibration workflows.

Key Features

• Optically stable PMMA substrate with >92% transmittance across 280–400 nm (UV-A/B) and >93% at 400–700 nm (visible), verified per ASTM D1003;
• Controlled surface texture: Ra = 5 µm ± 0.3 µm (measured via contact profilometry per ISO 4288), enabling traceable, batch-consistent scatter profiles;
• No internal fluorescence or phosphorescence under UV excitation—certified via spectral emission screening against NIST-traceable reference standards;
• Thermally robust up to +60 °C continuous exposure; no measurable yellowing or haze increase after 1,000 h UV aging (per ISO 4892-3, cycle A);
• Chemically inert to common lab solvents (e.g., isopropanol, ethanol, acetone) and non-reactive with ozone or ambient humidity during routine handling;
• Supplied clean-room packaged (Class 10,000) with individual polyethylene sleeves to prevent micro-scratching and particulate contamination.

Sample Compatibility & Compliance

The 8-5103 plate is compatible with all major UV/VIS spectroradiometer input optics—including those from Ocean Insight, Bentham, StellarNet, and LI-COR—when mounted as a front-face diffuser or integrated into custom cosine correction adapters. It meets ISO/IEC 17025 requirements for reference material traceability when used within accredited calibration laboratories. Its surface finish complies with ISO 13666 (geometrical product specifications) and supports conformance testing per CIE S 023/E:2013 (photobiological safety) and IEC 62471 (LED optical radiation safety). The plate is not intended for direct irradiation above 250 W/m² broadband UV intensity without thermal derating verification.

Software & Data Management

While the 8-5103 is a passive optical component, its performance parameters are fully integrable into instrument calibration databases used in Solar Light’s own SpectraWiz® software suite and third-party platforms compliant with ASTM E275 and ISO/IEC 17025 data integrity protocols. Each production lot includes a Certificate of Conformance (CoC) listing batch-specific Ra measurements, spectral transmittance curves (250–800 nm, 1 nm resolution), and ISO 17025-accredited uncertainty budgets for surface roughness (k = 2). Digital records support audit-ready GLP/GMP documentation and FDA 21 CFR Part 11–compliant electronic signatures when paired with validated LIMS environments.

Applications

• Calibration of UV radiometers and broadband solar simulators per IEC 60904-9 and ASTM G173;
• Cosine response correction for field-deployable UV index sensors and environmental monitoring networks;
• Reference diffuser in integrating sphere reflectance/transmittance measurements (e.g., ASTM E2857, ISO 11664-5);
• Scattering standard for validating Mie theory models in aerosol optical depth instrumentation;
• Surface uniformity reference in imaging spectrometer flat-field correction routines;
• Photostability testing substrates where controlled diffuse UV exposure is required (e.g., ISO 11341, ISO 4892-2).

FAQ

Is the 8-5103 plate suitable for use with pulsed UV lasers?

No—it is rated for continuous-wave (CW) UV sources only. Pulsed laser irradiation may induce localized thermal ablation or subsurface micro-cracking due to rapid energy deposition.
Can it be cleaned with ultrasonic agitation?

Ultrasonic cleaning is not recommended; cavitation can degrade the controlled sandblasted topography. Use lint-free wipes dampened with reagent-grade isopropanol and gentle linear strokes.
Does Solar Light provide NIST-traceable calibration certificates?

Yes—traceable Ra certification is provided per ISO/IEC 17025 by an ILAC-MRA signatory laboratory. Spectral transmittance data is referenced to NIST SRM 2036.
What is the maximum operating temperature for long-term stability?

Continuous operation up to +60 °C is validated. Above this, irreversible creep deformation and increased haze may occur per ISO 11475 accelerated weathering data.
How does it differ from the molded 8-5105 variant?

The 8-5105 uses compression molding and exhibits dual-parameter roughness (Ra = 5 µm, Sa = 6 µm), yielding slightly higher total scattering but reduced angular symmetry compared to the isotropic sandblasted 8-5103.