Leuchtelement und seine Verwendung
Lighting unit for illumination, displays and/or diagnostics has a polymer moulding (3) containing a naphthalate. USE - The unit is used for filtering and enhancing the visible spectral fraction of light sources, for detecting ultra-violet (UV) light or for displays or scintillators (all claimed), including advertising and information displays, lights used in agriculture and horticulture for producing optimum light conditions for plant growth and in diagnostics, e.g. for displays of invisible radiation. ADVANTAGE - Fluorescent lamps and photodiodes gave relatively high light yields but the lamps do not give uniform illumination and the diodes are costly. The present unit gives a high light yield, can be made in many forms at low cost and gives satisfactory results.
DE 1997-19728449 A: 19970703