前言 HMD样机常有可引起定向障碍的不良特征(例如严重的反光、视频扫描滞后和图象不清)。当为了安全原因而限制试验飞行在白天进行时,这些问题可能更为严重。本文评价了几种改善措施。方法 最初的试飞员(TP)调查强调主要的缺陷。制造并装备带有蓝色滤色镜的通风服“头袋”,同时将琥珀色滤色片粘于挡风玻璃屏上。测试这种设备的舒适度、通风性和可视功能。结果 没有窗的头袋功能作用良好,但试飞员们抱怨有“脱离”和“孤独”感。颜色滤波系统为受试者提供了一个舱内视野,对飞行员的色知觉无明显损害。一个便携式吹风器防止CO_2储集并保持试飞员 Preface HMD prototypes often have undesirable characteristics that can cause disorientation (such as severe reflections, lag in video scanning, and unclear images). These problems can be worse when the test flight is restricted for safety reasons during the day. This article assesses several improvements. Method The initial Test Pilot (TP) survey highlighted major deficiencies. Manufacture and equip the airbag “head bag” with a blue filter and attach the amber filter to the windshield screen. Test the comfort, ventilation and visual features of this device. As a result, the function of the first bag without windows worked well, but the test pilots complained of a sense of “detachment” and “loneliness.” The color filter system provides the subject with an in-cabin vision without significant impairment to the pilot’s color perception. A portable hair dryer prevents CO_2 from accumulating and keeps test pilots flying