Optical: systems and elements – Compound lens system – With curved reflective imaging element
Patent
1994-12-06
1996-06-25
Dzierzynski, Paul M.
Optical: systems and elements
Compound lens system
With curved reflective imaging element
359495, 359496, 359501, 359629, 359630, G02B 1700, G02B 530, G02B 2714
Patent
active
055305865
ABSTRACT:
A compact wide-view angle image display apparatus which displays an image by using an optical system. A lens unit (L1) is disposed on the optical axis (A1) of an LCD (11). A magnifying reflecting mirror (12) is disposed on an optical axis (A2) perpendicularly intersecting the optical axis (A1). A half-mirror surface (13) is disposed at a tilt on the intersection point of the optical axis (A1) and the optical axis (A2) so that the half-mirror surface (13) reflects a bundle of rays from the LCD (11) to the reflecting mirror (12) and transmits the ray bundle reflected from the reflecting mirror (12). A magnifying reflecting mirror (14) is disposed to face the reflecting mirror (12). A half-mirror surface (15) is disposed at a tilt on the intersection point of the optical axis (A2) and an observer's visual axis (AE) so that the half-mirror surface (15) transmits the ray bundle reflected from the reflecting mirror (12) to the reflecting mirror (14) and reflects the ray bundle reflected from the reflecting mirror (14) to project it into an observer's eyeball. A lens unit (L2) of positive power is disposed between the half-mirror surface (15) and the eyeball.
REFERENCES:
patent: 3677621 (1972-07-01), Smith
patent: 4082432 (1978-04-01), Kirschner
patent: 4383740 (1983-05-01), Bordovsky
patent: 4799763 (1989-01-01), Davis et al.
patent: 5305124 (1994-04-01), Chern et al.
Dzierzynski Paul M.
Olympus Optical Co,. Ltd.
Sikd-er Mohammad Y.
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