Virtual image display apparatus and optical unit

A virtual image display apparatus of a direct virtual image-type comprising:

• a display element configured to emit image light;
• a first prism on which the image light from the display element is incident;
• a second prism bonded to the first prism to form a prism-based light guide member having a parallel flat plate shape;
• a semi-transmissive reflection film disposed in a junction portion between the first prism and the second prism and configured to reflect the image light guided in the first prism;
• a first lens having a planoconvex shape and disposed so as to face an outer side surface of the first prism on which the image light reflected by the semi-transmissive reflection film is incident;
• a transmissive mirror formed at a convex surface of the first lens and configured to reflect, toward the semi-transmissive reflection film, a part of the image light reflected by the semi-transmissive reflection film;
• and
• a quarter-wave plate disposed between the outer side surface of the first prism and the first lens with an air gap, wherein
• out of surfaces of the prism-based light guide member, a third surface in contact with a first surface on which the image light from the display element is incident and a second surface facing the first lens is configured to be inclined at a constant angle with a first plane that is a virtual plane perpendicular to a first direction in which eyes of a wearer who wears the virtual image display apparatus are arranged, in a direction in which the prism-based light guide member is configured to be tapered toward a direction from the eyes of the wearer toward the first lens along an optical axis of the first lens.