1979-03-23
1981-10-13
Henry, Jon W.
350296, G02B 2714, G02B 510
Patent
active
042945151
ABSTRACT:
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 virtual image thereby formed 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.
REFERENCES:
patent: 1355397 (1920-10-01), Heylmun
patent: 2113397 (1938-04-01), Croft
patent: 2165078 (1939-07-01), Toulon
patent: 2165736 (1939-07-01), Twele
patent: 2182099 (1939-12-01), Sullivan
patent: 2484379 (1949-10-01), Goldberg
patent: 2895372 (1959-07-01), Tacklind et al.
patent: 3446916 (1969-05-01), Abel et al.
patent: 3536832 (1970-10-01), Zipse et al.
patent: 3589796 (1971-06-01), Schaefer
patent: 3723805 (1973-03-01), Scarpino et al.
patent: 3816005 (1974-06-01), Kirschner
patent: 3824535 (1974-07-01), Rover
patent: 3836263 (1974-09-01), Rickert
patent: 3870405 (1975-03-01), Hedges
patent: 3905708 (1975-09-01), Steck
patent: 3923370 (1975-12-01), Mostrom
patent: 3942901 (1976-03-01), Ekstrand
patent: 4026641 (1977-05-01), Bosserman et al.
Henry Jon W.
Kronman Albert F.
LandOfFree
Virtual image display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Virtual image display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Virtual image display apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-928053