About Us

Phorad® is a precision light-measurement product line of The Spectra Company LLC, developed to support regulated environments where accuracy, repeatability, and traceable calibration are essential. With over 80 years of experience in photometry and light-measurement technology, the Spectra legacy continues through Phorad instruments engineered for radiography, medical imaging, and industrial inspection applications in which lighting and viewing conditions directly affect quality, safety, and compliance.

Built on decades of scientific and practical expertise, Phorad products reflect a commitment to precision optical design, stable electronics, and measurement workflows aligned with recognized industry standards. Each instrument is designed to deliver reliable, repeatable results suitable for professional QA programs and audit-ready documentation.

Phorad is dedicated to supporting professionals through dependable instrumentation, NIST-traceable calibration, and long-term technical support. Our products are designed to integrate seamlessly into medical imaging QA programs, industrial NDT inspection environments, and calibration laboratories where confidence in measurement accuracy is critical.