| 摘要 |
PROBLEM TO BE SOLVED: To provide a polarized light irradiation device which is free of the temporal deterioration of the extinction rate of polarized light irradiating a visual field angle compensating film or alignment film. SOLUTION: The polarized light irradiation device equipped with a light source and a polarizing element which polarizes the light from the light source is provided with a box body which holds the polarizing element and is characterized by that the box body holds the polarizing element in a freely fine-adjustable state. |
