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5 August 2002 Advanced rotorcraft helmet display sighting system optics
Francois Raynal, Muh-Fa Chen
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Proceedings Volume 4711, Helmet- and Head-Mounted Displays VII; (2002) https://doi.org/10.1117/12.478872
Event: AeroSense 2002, 2002, Orlando, FL, United States
Abstract
Kaiser Electronics' Advanced Rotorcraft Helmet Display Sighting System is a Biocular Helmet Mounted Display (HMD) for Rotary Wing Aviators. Advanced Rotorcraft HMDs requires low head supported weight, low center of mass offsets, low peripheral obstructions of the visual field, large exit pupils, large eye relief, wide field of view (FOV), high resolution, low luning, sun light readability with high contrast and low prismatic deviations. Compliance with these safety, user acceptance and optical performance requirements is challenging. The optical design presented in this paper provides an excellent balance of these different and conflicting requirements. The Advanced Rotorcraft HMD optical design is a pupil forming off axis catadioptric system that incorporates a transmissive SXGA Active Matrix liquid Crystal Display (AMLCD), an LED array backlight and a diopter adjustment mechanism.
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Francois Raynal and Muh-Fa Chen "Advanced rotorcraft helmet display sighting system optics", Proc. SPIE 4711, Helmet- and Head-Mounted Displays VII, (5 August 2002); https://doi.org/10.1117/12.478872
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KEYWORDS
Head-mounted displays
Modulation transfer functions
Eye
Visualization
Optical design
Distortion
Combined lens-mirror systems
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