Photo Research
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| Brand | Photo Research |
|---|---|
| Origin | USA |
| Model | PR-740/745 |
| Detector Type | Cooled 512-pixel CCD |
| Spectral Resolution | Up to 0.781 nm/pixel |
| Minimum Luminance | 0.000017 cd/cm² |
| Spectral Bandwidth Options | 2 nm, 5 nm, 8 nm |
| Display | High-Resolution Full-Color Touchscreen |
| Interface Options | USB, RS-232, Bluetooth (up to 100 m range) |
| Calibration | User-performed via SpectraWin Remote Mode & Built-in Self-Calibration Software |
| Optical Accessories | Eight interchangeable apertures |
| Compliance | ASTM E308, CIE 15:2018, ISO/CIE 11664, USP <1058> (analytical instrument qualification framework) |
| Brand | Photo Research |
|---|---|
| Origin | USA |
| Model Series | PR-805, PR-810, PR-880, PR-810L |
| Detection Principle | Photomultiplier Tube (PMT) with Precision Interference Filter Wheel Architecture |
| Luminance Range (PR-810L) | 1 × 10⁻⁶ to 5.184 × 10⁵ fL |
| Luminance Range (PR-880) | 1 × 10⁻⁴ cd/m² min |
| Luminance Range (PR-810) | 1 × 10⁻⁴ fL min |
| Luminance Range (PR-805) | 9 × 10⁻⁴ fL min |
| Field-of-View Options | 3°, 1°, 0.25°, 0.125° (PR-810 & PR-810L) |
| Dynamic Range | 9 × 10⁶:1 (PR-805/810), 9 × 10⁸:1 (PR-810L) |
| Built-in Rechargeable Battery | >12 h continuous operation |
| Calibration Traceability | NIST-traceable, internal reference source (PR-880) |
| Compliance | MIL-STD-461E (EMI), ANSI PH2.17, CIE S 014/E:2006, ISO/CIE 11664-2:2019 |