Latest News
RoadVista Awarded Patent For Handheld Retroreflection Measurement Technology
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)....
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Photometric
Range Calibrations
RoadVista offers an extensive range of highway safety calibration services
in our 15-meter photometric range that exceed the specifications of ASTM
E810. Our calibrations meet the specifications of various test methods, including
ASTM, SAE, ITE, ITS, CEN and many others.
Retroreflection measurements of pavement markers, sign sheeting,
clothing, raised pavement markers
- Daytime color
- Nighttime color
- Retroreflection (ASTM RL, RA, RI)
Lamp, Traffic Signal, and Message Board Measurements
- Angular luminous intensity
- Angular illuminance
- Angular luminance
- Angular color and chromaticity
- PDF
Datasheet
