| 摘要 |
<p>The invention relates to a light-emitting arrangement with a light-generating layer of an OLED or QLED that generates light, which is emitted by a surface layer (4) into an exterior space (A). The surface layer (4) has a surface region running in a first approximation in a plane (E) through which the light is emitted. To achieve as great a light yield as possible, optical elements (3) are arranged or formed on this surface region of the surface layer (4), said optical elements having surface regions (5) with a pitch angle beta greater than 0° over plane (E). Pitch angle beta is selected such that it satisfies the equation n(lambda0) sin (beta - alpha0) = sin (beta), wherein the function I = I(lambda, alpha), alpha > 0°, which indicates the intensity I of the light within the surface layer (4) as a function of the wavelength lambda and the angle alpha, at which the light is diffused with reference to a normal (N) of the plane (E) extending from the light generating layer (2), is at its absolute maximum at wavelength lambda0 and at angle alpha0 and wherein n(lambda0) designates the refractive index of the optical elements (3) at wavelength lambda0.</p> |
