| 摘要 |
A head-up display system having a diffusing image plane or diffuser. The light output of a relatively small image source is imaged on the diffuser by way of imaging optics. A mirror is used to image light from the diffuser onto a windshield and correct for distortion caused by the windshield. The diffuser is advantageously used when a large field-of-view is desired, or sun load characteristics need to be addressed. The diffuser may be flat or curved in order to optimize the system for different applications. The magnification of the mirror may be made relatively low, and the solar emergency density that is made incident on the image source is reduced, providing for a low cost, high performance, color head-up display system. A drive mechanism allows selective operator controlled repositioning of the image source and imaging optics with respect to diffuser to vary image size, position and/or intensity. |
