| 摘要 |
An illumination apparatus includes a light source apparatus that outputs first, second, and third light beams, an afocal system on which the first, second, and third light beams are incident, a first fly-eye lens, a second fly-eye lens, a light convergence system provided in a position downstream of the second fly-eye lens, and a phosphor layer that the first light beam, the second light beam, and the third light beam enter via the light convergence system. When a ratio between the distance between the first light beam and the second light beam and the distance between the first light beam and the third light beam is defined as a ratio R, the ratio R on the light exiting side of the afocal system differs from the ratio R on the light incident side of the afocal system. |
| 主权项 |
1. An illumination apparatus comprising:
a light source apparatus that outputs a first light beam, a second light beam, and a third light beam; an afocal system on which the first light beam, the second light beam, and the third light beam are incident; a first fly-eye lens provided in a position downstream of the afocal system; a second fly-eye lens provided in a position downstream of the first fly-eye lens; a light convergence system provided in a position downstream of the second fly-eye lens; and a phosphor layer which is provided in a position downstream of the light convergence system and on which the first light beam, the second light beam, and the third light beam are incident via the light convergence system, wherein a ratio R is defined to be a ratio between the distance between the first light beam and the second light beam and the distance between the first light beam and the third light beam, and the afocal system is so configured that the ratio R on the light exiting side of the afocal system differs from the ratio R on the light incident side of the afocal system. |
