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美國Photo Research
美國Photoresearch 公司成立于1941年，是一家專門致力于光度、色度、輻射度測量儀器研究生產的世界著名公司。多年來，公司通過多位著名教授的研發，取得多項專利技術，在科研、航空、顯示領域具有絕對的優勢，始終在光度、色度、輻射度的測量儀器領域中保持遙遙領先的地位。公司擁有十三個自己獨立的光學校準實驗室，具有NIST（美國最高計量單位）的溯源標準，出廠的每一臺儀器都經過精確的校準，保證了儀器最高的精度和穩定性。
Photo Research is the world leader and innovator in high precision, state of the art electro-optical instrumentation and systems. Photo Research has delivered world-class light and color measurement solutions, serving the cathode ray tube ("CRT")/flat panel display ("FPD"), automotive, aerospace, lighting, motion picture, research and development and related industries for over 60 years.

Photo Research has three main product lines. The Spectra product line offers systems to a wide variety of industries for research, quality control and on-line testing. This line includes the only truly portable battery operated Spectroradiometer; the PR-650 fast scanning SpectraColorimeter. The PR-705/715 SpectraScan complements this line with an industry first automated aperture wheel with up to six apertures. The Pritchard? line originated with the industry workhorse the PR-1980 series.

The Pritchard is the most widely used photometer in the world. The newer addition to this series is the PR-880. This is the only fully automated filter photometer available today. The PR-880 is ideal for today's automated factory and ATE/OEM environments.

Photo Research developed the first commercially available video photometer over 15 years ago. In 2001, the newest and most advanced video photometer the PR-920 digital video photometer was introduced. Video instrumentation provides high resolution inspection of CRT and flat panel displays and instrument panels. The

Photo Research Optical Metrology Laboratory (PROML) is a supplier of and service provider to optical radiation standards, calibration and measurement for major manufacturers of instruments, displays, devices and materials. All Photo Research instruments are calibrated to NIST-traceable standards.

Photo Research developed many industry standards, such as Spectra Pritchard Optics, utilized in astronomical and star-simulation measurements. Photo Research is also instrumental in supporting standards for organizations including VESA, ISO and SAE.
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