Patent ID: 8116006
Filing Date: 2012-02-14
Classification: G02B,G03H

Abstract:
1. An image display apparatus comprising: an illumination optical system; a reflective type display device for displaying an image by modulating illumination light from the illumination optical system; and an eyepiece optical system for directing image light from the reflective type display device to a pupil of a viewer, the illumination optical system comprising: a light source for emitting light; and an optical-path bending member for bending an optical path leading from the light source to the reflective type display device, wherein the optical-path bending member is so arranged that a ray of light traveling from the light source to the optical-path bending member and a ray of light traveling further on a same optical path as said ray of light from the reflective type display device to the eyepiece optical system cross each other in a medium located outside the eyepiece optical system and having a substantially uniform index of refraction, and a reflection surface of the optical-path bending member and the optical path from the reflective type display device to the eyepiece optical system do not cross each other, the reflection surface being the last reflection surface before the reflective type display device on the same optical path.