| 摘要 |
PROBLEM TO BE SOLVED: To provide a wavelength conversion member having a wide excitation emission wavelength band and excellent in durability, and to provide an optical electromotive device having high performance and excellent reliability.SOLUTION: The wavelength conversion member includes: a first wavelength conversion layer composed of a first composition containing a first wavelength conversion material with which light in ultraviolet ray and in violet ray regions are converted into light of the longer wavelength side with respect to a direction of incident light and a first binder; and a second wavelength conversion layer composed of a second composition containing a wavelength conversion material with which an infrared ray is converted into light of the shorter wavelength side and a second binder, wherein those layers are adjacent to each other and laminated in this order. In addition, an optical electromotive device has the wavelength conversion member. |
