Demo: Head-up display visual inspection

13 November 2020

Head-up displays (HUDs) pose unique measurement challenges for manufacturers, who must account for projected image luminance, contrast, and clarity regardless of ambient conditions, virtual image positions, eyebox limitations and focal distances on an infinite viewing plane. Comprehensive HUD testing requires both photometric (light data) and dimensional (spatial data) measurements to ensure the accuracy of information conveyed to a vehicle operator within a rapidly changing, real-world environment. Standards for optical performance testing (SAE J1757-2) call for visual inspection systems that can completely and efficiently evaluate HUDs against several parameters, whether tested during manufacture or after installation.

Engineered in response to OEM and supplier testing requirements, Radiant Vision Systems provides a comprehensive hardware/software solution to enable fully automated testing of HUDs in automotive and other integrations. In this video, Bret Stonebridge from Radiant demonstrates how a ProMetric® Imaging Photometer, electronically controlled lens, and TT-HUD™ Software enable rapid, automated visual inspection of HUD projections and virtual images. Using a single solution, all qualities of optical HUD performance can be tested simultaneously, including the qualities of variable-distance projections as in AR-HUD systems. In this video, you will learn about:

  • Radiant’s complete solution for HUD measurement and inspection
  • TT-HUD software test suite for optical performance evaluation based on brightness, color, contrast, MTF, ghosting, distortion, eyebox and more
  • Using electronically controlled lenses and Radiant software to rapidly focus to variable-distance projections and automatically calculate virtual image distances in real-distance units

Part of the Radiant Vision Systems TrueTest™ Software family, the TT-HUD module provides all of the benefits of TrueTest Software to efficiently perform light, color, and dimensional measurements with specific tests used to evaluate the quality of augmented projections, such as those emitted by HUD systems. A comprehensive HUD test solution from Radiant combines the TT-HUD application-specific software module, and a ProMetric Imaging Colorimeter or Photometer with 200 mm electronically controlled lens to perform rapid, automated visual inspection of head-up displays.

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