LED-based planar light source
First Claim
1. LED-based planar light source utilizing the colour mixing principle, the radiation from UV-emitting diodes arranged in a planar fashion being converted into light of longer wavelength by means of conversion by at least one UV-absorbing phosphor, and this light being mixed with a blue component, wherein the radiation of the UV diodes is absorbed by the at least one phosphor while the blue component is provided by at least one blue-emitting LED.
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Accused Products
Abstract
The planar light source (1) uses the principle of RGB mixing, the radiation of UV diodes (5) arranged in a planar fashion being converted by means of phosphors (7) which emit in the red and green spectral regions. The blue component is added by blue-emitting LEDs (8) whose radiation is preferably launched as a lateral diode row (9).
122 Citations
14 Claims
- 1. LED-based planar light source utilizing the colour mixing principle, the radiation from UV-emitting diodes arranged in a planar fashion being converted into light of longer wavelength by means of conversion by at least one UV-absorbing phosphor, and this light being mixed with a blue component, wherein the radiation of the UV diodes is absorbed by the at least one phosphor while the blue component is provided by at least one blue-emitting LED.
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