Image projection apparatus

An image projection apparatus comprising:

• a light source;
• an image generating unit that generates an image by using the light source;
• and
• a projection optical unit that projects the image generated by the image generating unit, wherein
• the image generating unit and the projection optical unit are arranged in a vertical direction,
• the light source is arranged beside the image generating unit, and
• the projection optical unit projects the image on a plane positioned in a direction orthogonal to the vertical direction, and the projection optical unit includes
• a first optical system having a plurality of lenses, and
• a second optical system having a first mirror, a second mirror, a mirror holder, and a transmitting glass,
• the first mirror is positioned on an optical path of light output from the first optical system,
• the second mirror is a concave mirror and is positioned on an optical path of light reflected from the first mirror so as to directly project the image to the plane positioned in the direction orthogonal to the vertical direction,
• at least the first mirror is fixed to the mirror holder through the interposition of a first bracket, and
• the transmitting glass allows the light reflected from the second mirror to be transmitted, and the transmitting glass is fixed to the first bracket that fixes the first mirror to the mirror holder.