| 摘要 |
PROBLEM TO BE SOLVED: To realize a compact light emitting element optical system capable of obtaining high-luminance observing light while preventing the external size of a light source device, especially, in a height direction, from getting larger. SOLUTION: This light emitting element optical system 30 incorporated in the light source device 3 is constituted of at least three reflectors 31 to 33, and a light emitting element 40 such as a green light emitting element 41, a blue light emitting element 42 and a red light emitting element 43 arranged on the three reflectors 31 to 33 classified by emitted light colors. By reflecting and condensing the light emitted from the light emitting element 40 on the incident end face 25a of a light guide 25 being a light transmitting means, the light beams of plural emitted light colors such as a red light beam (R), a green light beam (G) and a blue light beam (B) are mixed and become white. |
