| 摘要 |
PROBLEM TO BE SOLVED: To allow a light emitting unit 10 attached to a growth tank 200 to be moved.SOLUTION: A light irradiation device 100 for irradiating an organism with light in a growth tank 200 comprises a tubular light emitting unit 10 provided along a vertical direction of the growth tank 200, and a holding member 30 for holding the light emitting unit 10 at a predetermined holding position in the growth tank 200. The holding member 30 has a position changing mechanism for changing the holding position. |
