Luminous materials
First Claim
Patent Images
1. A luminous material comprising a rubber, glass or plastics material matrix, a rare earth metal luminescent material dispersed throughout the matrix and titanium dioxide with a particle size of less than one micron dispersed throughout the matrix as a colourant, the colourant allowing substantial transmission of light emitted by the luminous material.
2 Assignments
0 Petitions
Accused Products
Abstract
A luminous material comprising a rubber, glass or plastics material matrix. A luminescent material is dispersed throughout the matrix, and a colorant dispersed throughout the matrix. The colourant gives the matrix a colour when it is observed under substantially white light, and the colourant allowing substantial transmission of light emitted by the luminous material.
18 Citations
56 Claims
- 1. A luminous material comprising a rubber, glass or plastics material matrix, a rare earth metal luminescent material dispersed throughout the matrix and titanium dioxide with a particle size of less than one micron dispersed throughout the matrix as a colourant, the colourant allowing substantial transmission of light emitted by the luminous material.
-
29. A method for making a luminous material, comprising the steps of a) providing a rubber, glass or plastics matrix material;
- b) compounding a titanium dioxide colourant having a particle size of less than one micron into the matrix material; and
c) compounding a rare earth metal luminescent material into the matrix material, the luminescent material including at least one alkaline earth metal and at least one rare earth metal;
wherein the colourant provides the matrix material with a substantially white color when it is observed under substantially white light and wherein the opacity of the matrix is increased with the compounding of such colourant and luminescent material. - View Dependent Claims (30, 31, 32)
- b) compounding a titanium dioxide colourant having a particle size of less than one micron into the matrix material; and
Specification