Patent ID: 8576491

Claim:
A virtual image display device, comprising: an image display device that emits image light; a projective optical system that allows the image light emitted from the image display device to be incident; and a light guiding member, comprising: a light guiding portion; a light incidence portion that allows the image light to be incident to the light guiding portion; and a light emission portion that emits the image light guided by the light guiding portion to the outside, and that makes the image light visible through the light emission portion, the light guiding portion having a first reflective surface and a second reflective surface that are disposed in parallel with each other and allow the image light to be guided through a substantially total reflection, the light incidence portion having a third reflective surface that defines an opening width and makes a predetermined angle with respect to the first reflective surface, the light emission portion having a fourth reflective surface that makes a predetermined angle with respect to the first reflective surface, and the projective optical system having an emission opening width that is larger than the opening width of the third reflective surface in a direction that is parallel with a plane of the first reflective surface and is orthogonal to an intersection line between the first reflective surface and the third reflective surface.