RoadVista, a Gamma Scientific Company and leading manufacturer of precision highway-safety measurement instruments, today announced it has been awarded a patent for the technology underlying its innovative handheld, multiple-angle retroreflectometers. U.S. Patent # 7,961,328 B2 has been awarded for the technology’s unique ability to simultaneously measure two or more annular bands of retroreflected light, as well as provide users with continuous, user-adjustable entrance and observation angles. This technology is field-proven in RoadVista’s Model 922 and Model 932 handheld retroreflectometers, which also feature lab-grade accuracy and comprehensive data management tools.
The Model 922: Simultaneous, dual-angle measurement.
The industry's only annular aperture instrument, the Model 922 measures observation angles of 0.2°and 0.5°, with an entrance angle of -4°(European specifications also available)....