Wavelength-Dependent and-Independent Effects of Veiling Glare on the Visibility of Head-Up Display (HUD) Symbology

We have measured the effects of laser glare-source wavelength on the visibility of Head-Up Display (HUD) symbology. Most of the effects are due to the wavelength dependence of human illuminance sensitivity. When the human visibility function is taken into account, the magnitude of the wavelength dep...

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Bibliographische Detailangaben
Hauptverfasser:	Varner, Denise C, Cartiedge, Robert M, Elliott, III, W R, Menendez, Arthur R, Carrier, Roxie, Richter, Marta J
Format:	Report
Sprache:	eng
Schlagworte:	AGING(PHYSIOLOGY) Anatomy and Physiology CHROMATICITY CONTRAST Electrooptical and Optoelectronic Devices FREQUENCY FUNCTIONS GLARE HEAD UP DISPLAYS Human Factors Engineering & Man Machine System HUMANS ILLUMINATION LASERS PE62202F PHYSIOLOGICAL EFFECTS SENSITIVITY SYMBOLS VISIBILITY VISION VISUAL PERCEPTION WAVELENGTH DEPENDENCE WUUSAFSAM77570282
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Zusammenfassung:	We have measured the effects of laser glare-source wavelength on the visibility of Head-Up Display (HUD) symbology. Most of the effects are due to the wavelength dependence of human illuminance sensitivity. When the human visibility function is taken into account, the magnitude of the wavelength dependence is reduced by a factor of 4.2. A second effect is a wavelength-independent effect in subjects. This second effect is directly correlated with subject age. The remaining (small) variation may be due to chromatic contrast sensitivity. Age effects; Chromatic sensitivity; Glare; Head-up displays; Illuminance; Laser bioeffects; Visibility; Visual perception; Visual sensitivity; Wavelength dependence.