| 摘要 |
An illumination optical system has: a light source, a first optical member, a second optical member, and a rod integrator, and illuminates an image display surface of a display element. The light source emits illumination light having a flat beam cross section. The first optical member reduces flatness of the beam cross section. The second optical member condenses or diverges the illumination light. The rod integrator uniformizes spatial energy distribution of the illumination light subjected to optical action of the first and second optical members.
|
