Abstract: A ground vehicle heads up display includes a video program source and a display device for producing a set of visual images corresponding to the video program. A mirror, preferably disposed on the vehicle windshield, reflects an image of the display device to the passenger. This mirror is preferably above the line of sight to the road ahead. The mirror may be monocular, reflecting the image to only one eye of the passenger, or it may be binocular, reflecting the image to both eyes. The heads up display may optionally include an additional mirror located slightly above the normal line of sight of the driver toward the direction of travel, having a size which is a small fraction of the windshield area for reflecting an image of the display device to at least one eye of the driver.

Abstract: The present invention is heads up display for use in a ground vehicle. A video program source and a display device produce a set of visual images which are reflected to only one eye of the driver via a mirror disposed on the windshield at a position slightly above the normal line of sight of the driver. This mirror has a size which is a small fraction of the windshield area, a width less than the interpupilary distance, and has a size relative to the size of the display device and the distance from the driver to the display device to reflect an image of the display device to only one eye of the driver. This could be either the left eye or the right eye. The display device is surrounded by a dark unobtrusive background which enables the reflected image other than the display to be visually uninteresting. The mirror has a optical power for reflecting a collimated image focused at visual infinity.

Abstract: A device for maintaining the vigilance of a motor vehicle operator. Two preferred embodiments, maintaining the operator's attention toward the direction of developing traffic conditions, with a visual system focused at infinity, are disclosed. One shows an image which is projected or otherwise transmitted from below the normal line of sight of the operator, while the other illustrates transmission of the image from above the vehicle operator. The invention overcomes "road hypnosis" or other inattentiveness by maintaining the operator's interest, thereby putting the operator's psychological perceptive apparatus in a high state of readiness.

Abstract: A device for maintaining the vigilance of a motor vehicle operator. Two preferred embodiments, maintaining the operator's attention toward the direction of developing traffic conditions, with a visual system focused at infinity, are disclosed. One shows an image which is projected or otherwise transmitted from below the normal line of sight of the operator, while the other illustrates transmission of the image from above the vehicle operator. The invention overcomes "road hypnosis" or other inattentiveness by maintaining the operators's interest, thereby putting the operators's psychological perceptive apparatus in a high state of readiness.

Abstract: A device for maintaining the vigilance of a motor vehicle operator. Two preferred embodiments, maintaining the operator's attention toward the direction of developing traffic conditions, with a visual system focused at infinity, are disclosed. One shows an image which is projected or otherwise transmitted from below the normal line of sight of the operator, while the other illustrates transmission of the image from above the vehicle operator. The invention overcomes "road hypnosis" or other inattentiveness by maintaining the operator's interest, thereby putting the operator's psychological perceptive apparatus in a high state of readiness.