| 摘要 |
<p>A projection display device, comprising a light source (101), an illuminating optical system (102) forming illuminating light, a reflective light bulb (106) forming an optical image by reflecting the illuminating light, a projection optical system (107) projecting the optical image, and a positive power lens (105), wherein the optical axis (115) of the reflective light bulb, the optical axis (113) of the projection optical system, and the optical axis (114) of the positive power lens are aligned with each other, the illuminating light system (102) is disposed so that the illuminating light is reflected by the reflective light bulb (106) after passing through the positive power lens (105), and the outgoing eye (108) of the illuminating optical system (102) and the incidence eye (109) of the projection optical system (107) are disposed so as to form a conjugate relation with the positive power lens (105).</p> |
