| 摘要 |
PROBLEM TO BE SOLVED: To provide a light irradiation device for investigating a living body which emits light with a plurality of wavelengths from a plurality of emitting ends.SOLUTION: A device 1 which irradiates living bodies, such as a cell, with light with a plurality of wavelengths includes: a bundle fiber 20 in which a plurality of optical fiber strands are randomly placed at an emitting end to an incidence end of an optical fiber strand group 24 which bundles the optical fiber strands and in which a plurality of incidence ends and emitting ends are provided. Each emitted light of the bundle fiber 20 has the same wavelength, intensity, and intensity distribution. |
