Image projection apparatus

摘要

Provided is an image projection apparatus, such as a projector, including a light source; an image generating element such as a DMD that receives light from the light source and forms an image; an image generating unit that irradiates the image generating element with the light from the light source; a first optical system including multiple transmission refractive optical elements; a second optical system arranged on an optical path of outgoing light of the first optical system and including a reflection optical element; and a projection optical system that enlarges and projects an image conjugate to the image generated by the image generating element as a projected image. The light source, the image generating unit, and the first optical system are arranged side by side in series in a direction parallel with the projected image plane.

主权项

1. An image projection apparatus comprising a projection optical system that projects an image, the projection optical system comprises:
a first optical system formed of a plurality of lenses; and a second optical system including a first mirror, a second mirror, a transmitting glass, and a mirror holder, wherein the first mirror is positioned on an optical path of light output from the first optical system, the second mirror is positioned on an optical path of light reflected from the first mirror, the transmitting glass is positioned on an optical path of light reflected from the second mirror, and wherein the mirror holder holds a first bracket which holds at least the first mirror and the transmitting glass.