| 摘要 |
PROBLEM TO BE SOLVED: To improve an optical device capable of improving heat dissipation and luminous efficiency of a fluorescent element.SOLUTION: The optical device comprises: a fluorescent wheel including a fluorescent powder area; a first light source engine for providing a first light beam, where the first light beam forms a first light spot on the fluorescent powder area of the fluorescent wheel; and a second light source engine for providing a second light beam, where the second light beam forms a second light spot on the fluorescent powder area of the fluorescent wheel, and the first light spot is separated from the second light spot.SELECTED DRAWING: Figure 2 |
