| 摘要 |
A light modulator element includes a first liquid crystal element which has a first liquid crystal layer containing liquid crystal molecules aligned along a first direction, and two first transparent electrodes disposed in opposition to each other with the first liquid crystal layer sandwiched therebetween, and which controls the phase of linear polarization light with a prescribed wavelength emitted from a light source and passing through said first liquid crystal layer by applying an electric voltage in accordance with said prescribed wavelength between said two first transparent electrodes; a polarizer plate which is disposed between said light source and said first liquid crystal element and which has the transmission axis along the first direction of the first liquid crystal element or along a direction orthogonal to said first direction; and a rotation mechanism which supports the first liquid crystal element and the polarizer plate and which rotates the first liquid crystal element and the polarizer plate integrally in one unit with the optical axis of the first liquid crystal element as the rotation axis. |
