| 摘要 |
The invention provides a visual display apparatus 1 comprising an image display device 3, a projection optical system 4 adapted to provide an image on the image display device 3, and an eyepiece optical system 5 adapted to allow an image projected through the projection optical system 4 to be viewed as a faraway virtual image. The eyepiece optical system 5 comprises a diffusing surface 11 adapted to diffuse an image projected through the projection optical system 4, a reflective optical device 51 having at least one reflecting surface adapted to reflect an image diffused through the diffusing surface 11, and at least one rotationally asymmetric transmissive optical device 52 adapted to transmit an image reflected by the reflective optical device 52. The number of imaging differs at a certain first section, and at a second section orthogonal to the first section.
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