Lighting using natural light
AssigneeEmpire Technology Development LLC
InventorToshimi Fukui
Life of this patent
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Abstract
Embodiments described herein generally relate to re-using the energy of natural light. In some examples, a lighting unit is described. An example lighting unit can include a multiple number of bound light-conductive members. A long-lasting phosphorescent material can be dispersed between the multiple number of bound light-conductive members. A luminance of the lighting unit can be at least several thousand cd/m2.
Claims27
A lighting unit, comprising:
- a plurality of bound light-conductive members;
- and
- a phosphorescent material dispersed between the plurality of bound light-conductive members;
- wherein a luminance of the lighting unit is at least several thousand candela per square meter (cd/m2).
(canceled)
7-8. (canceled)
A method of forming a lighting unit, comprising:
- forming a textured surface on at least one side of a light-conductive member;
- depositing a layer of phosphorescent material on the textured surface of the light-conductive member to form a combined layer;
- and
- binding a plurality of combined layers together.
14-18. (canceled)
The method of claim 17, wherein a collective luminance of the bound plurality of combined layers is at least several thousand candela per square meter (cd/m2).
24-25. (canceled)
The system of claim 25, wherein the reflectance of the material coating the inside surface of the housing is at least 85% for wavelengths within the emission spectrum of the lighting unit.
27-28. (canceled)
A method for storing and re-using energy of natural light comprising:
- collecting natural light from the sun at a light collector;
- storing energy from the natural light in a lighting unit optically coupled to the light collector, the lighting unit comprising a layer of phosphorescent material on a textured surface of a light-conductive member;
- and
- emitting the stored energy as light to provide illumination.
32-33. (canceled)
Dependencies are inferred from the claim text.