| 摘要 |
A dual lamp illumination system includes a first light source, a second light source, a light-deflecting device, a light-homogenizing device, and a lens assembly. The light-deflecting device is positioned in both a first light path of the first light beam and a second light path of the second light beam to combine the first light beam with the second light beam. The lens assembly includes a first set of varifocal lenses neighboring the light-deflecting device and a second set of varifocal lenses neighboring the light-homogenizing device. The composition of the first set of varifocal lenses is identical to the composition of the second set of varifocal lenses, and the first set of varifocal lenses and the second set of varifocal lenses are positioned substantially in symmetry. |
