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US 2014/0369038 A1Published application
Lighting systems incorporating flexible light sheets deformable to produce desired light distributions
AssigneeCooledge Lighting Inc.
InventorsMichael A. Tischler, Paul Palfreyman, Calvin Wade Sheen
Life of this patent
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Abstract
In accordance with certain embodiments, lighting systems include flexible light sheets having light-emitting elements with first luminous intensity distributions disposed thereover, and the light sheets are curved or folded to produce a second luminous intensity distribution different from the first luminous intensity distribution.
Claims25
-92. (canceled)
An illumination device comprising:
- a housing;
- and
- a flexible light sheet that is substantially planar in an unfolded and uncurved configuration, the light sheet comprising (i) a flexible substrate having first and second opposed surfaces, (ii) a plurality of light-emitting elements disposed over at least one of the first or second surfaces of the substrate, and (iii) a plurality of conductive traces disposed on the substrate and electrically interconnecting the plurality of light-emitting elements,
- wherein (i) the light-emitting elements each have a first luminous intensity distribution, (ii) at least a portion of the flexible substrate not covered by the light-emitting elements is reflective for a wavelength of light emitted by the light-emitting elements, (iii) the light sheet is curved and/or folded to produce a second luminous intensity distribution emitted by the illumination device, different from the first luminous intensity distribution, and (iv) the curved and/or folded light sheet is disposed at least partially within the housing.
1 more element
Dependencies are inferred from the claim text.