| 主权项 |
1. An image displaying apparatus, comprising:
(A) an image production apparatus; and (B) light conduction means for receiving and conducting light outputted from said image production apparatus and then emitting the light toward the pupil of an observer, said light conduction means including
(B-1) a light conduction plate for propagating the incident light by total reflection in the inside thereof and emitting the light therefrom,(B-2) first deflection means disposed in said light conduction plate and adapted to deflect the light incident to said light conduction plate so that the light incident to said light conduction plate is totally reflected in the inside of said light conduction plate, and(B-3) second deflection means disposed in said light conduction plate and adapted to deflect the light propagated in the inside of said light conduction plate by total reflection over a plural number of times in order to emit the light propagated in the inside of said light conduction plate by total reflection from said light conduction plate, said image displaying apparatus further comprising beam expansion means for expanding the light emitted from said image production apparatus along a Z direction and emitting the expanded light to said light conduction means, where the Z direction is orthogonal to an X direction and a Y direction, which respectively correspond to an entering direction of the light into said light conduction plate and a propagation direction of the light in said light conduction plate, wherein said beam expansion means is configured from a first reflective element and a second reflective element arranged such that the light conduction means is located between the first reflective element and the second reflective.
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