| 摘要 |
<p>This wavelength conversion element has at least one wavelength conversion layer provided with: a matrix layer comprising an inorganic material or a cured resin material having a band gap of at least 3 eV; and particles that are provided in the matrix layer, have a particle size of 3-20 nm, and comprise a wavelength conversion composition that, with respect to a specific wavelength region of absorbed light, performs wavelength conversion to light having a lower energy than the absorbed light. The particles are disposed in a manner so that the gap between adjacent particles is no greater than the particle size of the particles. As a result, the wavelength conversion layer prevents reflection of light of other wavelength regions aside from the specific wavelength region.</p> |
