Patent ID: 9279984
Filing Date: 2016-03-08
CPC Classification: G02B

Claim Text:
1. An image displaying apparatus, comprising: an image production apparatus that outputs, in an X direction, a beam of light corresponding to a produced image; a light conduction plate configured to propagate light in a Y direction by total internal reflection; a first deflection element disposed in the light conduction plate; a second light deflection element disposed in the light conduction plate; a beam expanding section comprising a first reflective element and a second reflective element arranged such that the first deflection element is located between the first reflective element and the second reflective element, and configured to expand in a Z direction a diameter of the beam of light output by the image production apparatus, wherein the first deflection element is configured to deflect a portion of any light flux incident thereon from the X direction in such a manner that the deflected light is propagated within the light conduction plate by total internal reflection and to pass another portion of the light flux to the second reflective element, wherein the beam expanding section and the first deflection element are configured such that the beam of light, as expanded, is propagated within the light conduction plate by total internal reflection, wherein the second light deflection element is configured to deflect the beam of light propagating within the light conduction plate so as to emit the beam of light toward the pupil of an observer, and wherein the Z direction is orthogonal to the X direction and the Y direction.