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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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Lab Instruments: Model 940D Photometric Range System

The RoadVista Model 940D Computerized Photometric Range System is the ultimate in photometric testing of retroreflective materials, devices, automotive lighting and light sources. It allows the material engineer and the light source designer to characterize their products, whether purchased and developed in-house.

When used in conjunction with Gamma Scientific's flexOptometer, the system allows photometric measurements that determine the effective intensity of red and white strobe type anti-collision lights for aircraft and integrated illuminance energy in units of Lux-seconds (lumen/m² per second) and luminous intensity energy (candela second) for barricade and other flashing lamp sources.

The system can also be configured with the Gamma Scientific RadOMA spectroradiometer system to perform night-time color measurements of retroreflectors and spatial color measurements of automotive lighting and light sources.

The Windows 7 compatible system software enables a single operator to perform highly accurate measurements in a matter of minutes. Simplifying retroreflectance measurements via default measurement sequences conforming to ASTM E809 procedures A and B for retroreflective materials. Or utilize SAE configurations for measuring light sources such as headlights, taillights and message and warning lights including LED's. Single, vector and matrix measurements are possible with easily programmed data collection macro sequence files.

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