Fluorescent, structured shaped bodies
AssigneeBayer Aktiengesellschaft
InventorsRolf Wehrmann, Helmut-Werner Heuer
Life of this patent
Estimating the term…
Abstract
Optical display containing one or more shaped articles and a light source. The shaped articles consist of a transparent or semitransparent plastic. The plastic contains one or more fluorescent substances. One or more light sources are arranged in such a way that their light is applied to the surface of the shaped article at particular regions of it and propagates through the shaped article. The shaped article contains means for controlled light output, so that the light can be output from the shaped article in a controlled way at quite particular regions on the surface of the shaped article.
Claims12
An optical display made of at least one shaped article having a surface which article consists of one or more transparent or semitransparent plastics and contains one or more fluorescent substances, characterized in that the shaped article has means for controlled light output and one or more light sources that are arranged in such a way that their light input into the shaped article at particular regions of its surface, propagates through the shaped article and re-emerges at quite particular other regions of the surface of the shaped article, which are established by means for controlled light output, with a wavelength longer than that of the light input.
An optical display made of at least one shaped article having a surface which article consists of one or more transparent or semitransparent plastics and contains one or more fluorescent substances, means for controlled light output in the form of a structured surface, and one or more light sources that are arranged in such a way that their light input into the shaped article at particular regions of its surface, propagates through the shaped article and re-emerges at quite particular other regions of the surface, which are established by the surface for controlled light output, with a wavelength longer than that of the light input, said surface structured by a process comprising (i) applying and pressing to the surface a suspension of particles in a liquid, and (ii) evaporating the liquid, the liquid being a solvent of the plastics and the pressing carried out by a press die.
An optical display made of at least one shaped article having a surface which article consists of one or more transparent or semitransparent plastics and contains one or more fluorescent substances, means for controlled light output in the form of internal structuring, and one or more light sources that are arranged in such a way that their light input into the shaped article at particular regions of its surface, propagates through the shaped article and re-emerges at quite particular other regions of the surface, which are established by the internal structure for controlled light output, with a wavelength longer than that of the light input, said internal structuring formed by gas inclusions.
Dependencies are inferred from the claim text.