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| Brand | Optometric |
|---|---|
| Origin | USA |
| Model | SPF-290S |
| Wavelength Range | 190–2600 nm (UV-Vis-NIR) |
| Detector Type | Photomultiplier Tube (PMT) |
| Optical Configuration | Dual-Wavelength |
| Spectral Resolution | 1.66 nm |
| Effective SPF Measurement Range | 290–400 nm |
| Wavelength Accuracy | ±0.2% |
| Wavelength Repeatability | 0.25 nm |
| Measurement Mode | Manual Wavelength Selection |
| Sample Illumination Source | Continuous Xenon Lamp with Solar-Spectrum-Matching Filters |
| Detection Geometry | Integrating Sphere |
| Measurement Points per Sample | Up to 12 Automatic Positions |
| Typical Measurement Time per Sample | ~20 s |
| Compliance Context | Aligned with FDA-recommended in-vitro methodology (21 CFR Part 352, ISO 24443:2021, COLIPA/ISO 24444:2019) |
| Brand | Ocean Optics |
|---|---|
| Origin | USA |
| Model | HR2000+ |
| Wavelength Range | 200–1100 nm |
| Slit Width | 5 µm |
| Optical Resolution (FWHM) | ~0.035–0.12 nm (configurable) |
| Detector | 2048-pixel CCD array |
| A/D Converter | 2 MHz |
| Interface | USB 2.0 or RS-232 |
| Full Spectra Acquisition Rate | Up to 1000 spectra/s |
| Onboard Programmable Microcontroller | Yes |
| Digital I/O | 10 programmable pins |
| Analog Input/Output | 1 each |
| Trigger Support | External TTL, analog, or software |
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