| 摘要 |
The present application relates to an optical element. An exemplary optical element of the present application can change a transmittance depending on whether an external signal is applied, and can apply an external signal using a complex layer having a low transmittance for light in an infrared region. Therefore, the optical element can save energy by blocking heat. Such an optical element can be usefully used for various optical devices, for example, a sunroof. |
