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US 8,911,131 B2Granted
Energy efficient concentric illuminators for illuminating a sheet
AssigneeI2iC Corporation
InventorsUdayan Kanade, Balaji Ganapathy
Life of this patent
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Abstract
An apparatus and method for coupling light from concentric illuminators into a light source in the form of a surface are disclosed. According to one embodiment, the apparatus comprises a plurality of concentric tubes, each tube including a light diffuser. The apparatus also has a sheet having a first edge with the plurality of concentric tubes placed along the first edge. Each tube of the plurality of concentric tubes diffuses light such that the light emanates in a predetermined pattern along the first edge of the sheet.
Claims10
An apparatus comprising:
- a plurality of concentric tubes,
- a sheet having a first edge, the plurality of concentric tubes placed along the first edge,
- wherein each tube of the plurality of concentric tubes has a distribution of light diffusing particles, and
- each tube of the plurality of concentric tubes diffuses light such that the light emanates in a predetermined pattern along the first edge of the sheet.
1 more element
An apparatus comprising:
- a plurality of concentric tubes,
- a sheet having a first edge, the plurality of concentric tubes placed along the first edge, and
- a means of independently controlling light fed into each of the plurality of concentric tubes,
- wherein each tube of the plurality of concentric tubes includes a light diffuser, and
- each tube of the plurality of concentric tubes diffuses light such that the light emanates in a predetermined pattern along the first edge of the sheet.
2 more elements
Dependencies are inferred from the claim text.