Virtual image display apparatus

Details Virtual image display apparatus Virtual image display apparatus

G - Physics

02

B

88/46

G02B 27/18 (2006.01)

Patent

CA 1132384

ABSTRACT OF THE DISCLOSURE A virtual image display device for alpha-numeric and pictorial information. A concave spherical mirror segment magnifies and reflects an image from an image source. The image source is mounted between the focus of the mirror and the said mirror and parallel to its optical axis. The mirror segment is located substantially on the same side of the opti- cal axis as the image source. In this fashion an observer positioned on the same side of the optical axis as the mirror segment and the image display face can observe a substantially distortion free image, that is to say the formed visual image is visible to the viewer in front of the mirror. In related embodiments, the concave mirror segment can be made partially reflective and placed in front of a camera lens to allow a camera to photograph through it. A planar mirror can also be included to fold the light path of the display and thereby reduce the size of the apparatus.

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