Image displaying apparatus

Details Image displaying apparatus Image displaying apparatus

2006-12-05

2006-12-05

Cherry, Euncha P. (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S630000

Reexamination Certificate

active

07145706

ABSTRACT:
Disclosed is a compact image displaying apparatus which is high in light utilizing efficiency. The image displaying apparatus is provided with a light source, a scanning member for two-dimensionally scanning with light from the light source, and an optical system for directing the light deflected by the scanning member for scanning to an observer. The optical system is provided with an optical element in which a plurality of optical surfaces including refracting surfaces and internal reflecting surfaces are formed on a medium. The light deflected by the scanning member for scanning forms a two-dimensional image on a predetermined surface through a portion of the plurality of optical surfaces formed in the optical element. The plurality of optical surfaces formed in the optical element are disposed so that an effective area of the incidence surface of the optical element and an effective area of the internal reflecting surface may not overlap each other.

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patent: 5701132 (1997-12-01), Kollin et al.
patent: 6222676 (2001-04-01), Togino et al.
patent: 11084291 (1999-03-01), None
patent: 2001-004955 (2001-01-01), None
patent: 2001-194617 (2001-07-01), None

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