| 摘要 |
PROBLEM TO BE SOLVED: To provide a polarized light irradiation apparatus that has a shutter mechanism and can suppress an increase in temperature of the shutter mechanism and prevent a reduction in polarization performance.SOLUTION: A polarized light irradiation apparatus 100 includes: a light irradiation part 10 that irradiates an alignment film with polarized light in which light from a light source is polarized by a polarizer; and a shutter member (shutter member 31) that is arranged on the light-emission side of a light emission port 14a of the light irradiation part 10, and can move between a shielding position to shield the polarization light emitted from the light irradiation part 10 and a retreat position to retreat from the shielding position to allow the irradiation of the alignment film with the polarized light. The retreat position is a position at which the alignment film is not irradiated with the polarized light emitted from the light irradiation part 10. |
