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现在有几家制造商生产适用于夜间,并同样适用于白天需要的头盔显示器(HMD)。通常白天和夜间操作分别对头盔显示器具有不同特性的要求。要求白天使用的HMD是单目的,视野范围在25°以内,仅有符号,重量非常轻(3～3.51bs)。具有高真实传输和高显示亮度。用于夜间的HMD必须是双目的,视野大于40°,具有前视红外显示,符号重叠,综合夜视,重量较轻(最大4.51bs),并具备缩减真实传输和低亮度显示。然而,许多任务情景要求HMD在执行单个任务过程中既要能够用于白天也要可以用于夜间,因此,就要求使IIMD具有24小时的能力。本文对采用所提供的现代化技术,适用于固定翼和旋转翼的24小时HMD的设计方法进行了论述。
Several manufacturers now produce HMDs that are suitable for use during the night and are also suitable for daylight needs. Usually during daytime and nighttime operations, respectively, helmet displays have different characteristics of the requirements. HMDs that require daytime use are monocular and have a field of view of less than 25 °, with only symbols and very light weight (3 to 3.51bs). With high real transmission and high display brightness. HMDs used for nighttime must be binocular, with field of view greater than 40 °, forward looking infrared display, overlapping symbols, integrated night vision, light weight (up to 4.51bs), reduced true transmission and low brightness display. However, many mission scenarios require that the HMD be capable of both daylight and nighttime use in performing a single task, thus requiring that the IIMD have a 24-hour capability. This article discusses the design methodology for a 24-hour HMD that uses the modern technology provided for stationary and rotating wings.