Photo Research® NIR Range Spectroradiometers for Precision Measurement
The Photo Research® PR‑735 and PR‑745 Near‑Infrared (NIR) spectroradiometers are designed for precise spectral radiance and irradiance measurements in applications where accuracy beyond the visible spectrum is critical. Built on Photo Research’s legacy of measurement accuracy and stability, these instruments support characterization and calibration of NIR light sources, displays, materials, and imaging systems.
Ideal for R&D, laboratory, and production environments, PR‑735 and PR‑745 spectroradiometers provide consistent, traceable performance for medical, industrial, and scientific applications requiring confident NIR measurement.
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Light and Color Measurement Solutions
Photo Research®
SpectraScan® PR-735
High‑accuracy spectroradiometer designed for precise photometric and colorimetric light measurements across visible and near‑infrared applications.
Photo Research®
SpectraScan® PR-745
High‑sensitivity, near‑infrared spectroradiometer designed for fast, precise photometric and colorimetric measurements across demanding imaging and display applications.
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Discover how advanced light and color measurement can improve accuracy and consistency.
Explore Our Featured Applications
Light and Color Measurement Solutions
Light and Color Measurement
Accurate light and color calibration is critical to medical imaging quality and patient safety. Photo Research® spectroradiometers deliver trusted, lab‑grade measurement accuracy.
Medical Displays and Monitors
Our solutions deliver fully calibrated, reliable touch performance, optical clarity, and long‑term availability required by medical device manufacturers designing diagnostic, monitoring, and therapy systems.
Features of Photo Research® NIR Spectroradiometers

Pritchard® Optics

SpectraWin® Software

Flexible Configuration

User Profiles & Speed
Latest Insights on Light & Color Measurements
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Accurate Calibration for Measurement of Displays
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Spectroradiometers to Measure Blue Light
FAQs
NIR spectroradiometers extend measurement capability beyond the visible range, enabling accurate characterization of near‑infrared light sources, materials, and imaging systems that visible‑only instruments cannot measure reliably.
High‑performance NIR spectroradiometers are designed for stability, low noise, and traceable accuracy, delivering repeatable spectral measurements essential for validation, calibration, and quality control applications.
Yes. Configurable optics, measurement apertures, accessories, and software modes allow a single NIR spectroradiometer to adapt across R&D, production, and field environments while supporting diverse testing requirements.
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