| 摘要 |
A laser beam source device includes: a first light emission element; a second light emission element; and first and second dividing units, wherein the first light emission portion of the first light emission element and the first light emission portion of the second light emission element, having a first clearance, are disposed such that the laser beam emitted from each of the light emission portions can enter the other light emission portion, the second light emission portion of the first light emission element and the second light emission portion of the second light emission element, having a second clearance, are disposed such that the laser beam emitted from each of the light emission portions enters the other light emission portion, and the first clearance is longer than the second clearance.
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