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常规平视显示系统包括一个位于物平面上的发光物体(通常为CRT)和在象平面上提供该发光物体准直图象的光学系统.光学系统包括一个准直透镜和组合玻璃.准直图象通过组合玻璃与外部景物组合,可在眼平面上观察.平视显示系统设计的一个特点是必须严密注意光学系统内部的象差,以保证在整个视场内提供上述发光物体的精确准直图象.这一点在要求图象(例如飞机武器瞄准标记或航线点标记,以及数据显示)相对外界精确定位的系统内显得特别重要.事实表明,平视显示器的使用在军用航空中是如此重要,以致目前已把这种平视显示器的精度和质量看作是作战性能的限制因素之一.这种重要性使得人们希望用平视显示器来显示越来越多的信息.由于被显示的大量信息所引起的显示混乱成为这项技术
A conventional head-up display system includes a light-emitting body (usually a CRT) located on an object plane and an optical system providing a collimated image of the light-emitting body on an image plane. The optical system includes a collimating lens and a combination glass. The combination of glass and the outside scene can be observed in the eye plane A feature of the head-up display system design is that close attention must be paid to the aberrations inside the optical system to ensure that accurate collimated images of the above light-emitting objects are provided throughout the field of view This is particularly important in systems that require relatively accurate positioning of the image, such as aircraft aiming markings or course point markers, and data display, and the fact that the use of head-up displays is so important in military aviation that the current The accuracy and quality of such head-up displays have been considered as one of the limiting factors in combat performance, a fact that makes it desirable to display more and more information with the head-up display, due to the display of a large amount of information being displayed Confusion becomes the technology