Photo Research Visible Range Spectroradiometers for Medical Device Calibration
The Photo Research PR‑655 and PR‑670 portable spectroradiometers are designed for accurate spectral radiance and colorimetric measurements across the visible spectrum, supporting calibration and verification of medical displays, imaging systems, and illuminated diagnostic equipment.
Built on Photo Research’s legacy of measurement accuracy and stability, these instruments provide traceable, repeatable results for applications where consistent luminance, color, and contrast performance are essential. Compact and portable, PR‑655 and PR‑670 spectroradiometers are well‑suited for R&D, quality assurance, production validation, and field service environments within regulated medical and healthcare workflows.
Explore Our Portable Visible Range Spectroradiometers
Light and Color Measurement Solutions
Photo Research®
SpectraScan® PR-655
Portable visible‑range spectroradiometer designed for accurate photometric and colorimetric measurements in medical display and lighting calibration applications.
Photo Research®
SpectraScan® PR-670
Enhanced portable spectroradiometer offering improved sensitivity and performance for faster, more precise visible‑range light and color measurements across demanding environments.
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Discover how advanced light and color measurement can improve accuracy and consistency.
Explore Our Featured Applications
Light and Color Measurement Applications
Light & Color Measurement
Laboratory‑grade light and color calibration ensures medical imaging accuracy and patient safety.
Displays Engineered
for Medical Devices
Accurate light and color calibration ensures embedded medical displays deliver consistent, true‑to‑life visuals that support clinical accuracy and patient safety.
Features of Portable Visible Range Spectroradiometers

Pritchard® Optics

Real-Time Insights

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
Visible‑range spectroradiometers ensure accurate luminance, color, and contrast measurement for medical displays and illuminated devices, helping maintain diagnostic consistency and regulatory compliance.
Photo Research spectroradiometers are engineered for long‑term measurement stability and repeatability, supporting consistent calibration and quality control throughout a device’s lifecycle.
Yes. Configurable optics, accessories, and software modes allow a single instrument to support display calibration, lighting verification, and system validation across R&D, production, and field environments.
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