VIRTUAL IMAGE DISPLAY DEVICE

摘要

A virtual image display device has a light guide device in which the half mirror layer (the semi-transmissive reflecting film) of the light guide member is formed on the partial area of the first junction surface, and the second junction surface of the light transmitting member is bonded to the first junction surface in at least the exceptional area. Therefore, it is possible to increase the bonding strength of the first junction surface and the second junction surface, namely the strength of the light guide device composed of the light guide member and the light transmitting member combined with each other even in the case in which the attachment force of the half mirror layer (the semi-transmissive reflecting film) with respect to the first junction surface is not sufficiently strong.

主权项

1. A virtual image display device comprising:
an image display device adapted to form an image light; a projection optical system adapted to form a virtual image by the image light emitted from the image display device; a light guide member including:
a light entrance section adapted to take in the image light having passed through the projection optical system,a light guide section adapted to guide the image light taken in from the light entrance section, anda light exit section adapted to take out the image light having passed through the light guide section; and a light transmitting member adapted to make observation of external light possible by being bonded to the light guide member, wherein the light guide member has a semi-transmissive reflecting film, which bends the image light and transmits the external light, disposed on a partial area of a first junction surface to be bonded to the light transmitting member, and the light transmitting member has a second junction surface opposed to the first junction surface including an exceptional area excluding the partial area, and bonded to the first junction surface with an adhesive in at least the exceptional area.