Lighting device and methods of making the same
First Claim
Patent Images
1. A lighting device comprising:
- a light-transmitting resin sheet extending locally in a first plane; and
one or more light sources disposed within the light-transmissive resin sheet, each of the light sources comprising one or more light-emitting faces each extending in different planes,wherein each of the different planes of the light-emitting faces form an angle with the first plane of the light-transmitting resin sheet of about 35°
to about 75°
.
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Abstract
Lighting devices are disclosed having a light-transmissive resin sheet and one or more light sources disposed within the light-emitting resin sheet. The light sources may, in some embodiments, be oriented so that a large portion of light emitted from the light sources exhibits total internal reflection within the light-transmissive resin sheet and is trapped inside the sheet. This total internal reflection may, for example, advantageously provide a more uniform light emitted from the lighting device when scattered from objects inside the sheet. Methods of making and using the lighting device are also disclosed.
13 Citations
25 Claims
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1. A lighting device comprising:
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a light-transmitting resin sheet extending locally in a first plane; and one or more light sources disposed within the light-transmissive resin sheet, each of the light sources comprising one or more light-emitting faces each extending in different planes, wherein each of the different planes of the light-emitting faces form an angle with the first plane of the light-transmitting resin sheet of about 35°
to about 75°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A lighting device comprising:
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a light-transmitting resin sheet extending locally in a first plane; and one or more light sources disposed within the light-transmitting resin, each of the light sources comprising two or more light-emitting faces extending in different planes that meet at a vertex, wherein each of the different planes of the light-emitting faces form about the same angle with the first plane of the light-transmitting resin sheet.
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24. A method for making a lighting device, the method comprising:
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providing a first light-transmitting resin sheet comprising one or more cavities on one side of the first light-transmitting resin sheet, wherein the first light-transmitting resin sheet extends in a first plane; disposing one or more light sources at least partially within each of the cavities of the first light-transmitting resin sheet, wherein the light sources each comprise one or more light-emitting faces extending in different planes, and wherein each of the different planes of the light-emitting faces form an angle with the first plane of the first light-transmitting resin sheet of about 35°
to about 75°
; andfixing the light sources in optical contact with the first light-transmitting resin sheet.
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25. A method of producing light, the method comprising applying a voltage to one or more light sources effective for the light sources to emit light from one or more light-emitting faces on each of the light sources, wherein the light sources are disposed within a light-transmitting resin sheet extending in a first plane, and the light-emitting faces on each of the light sources extend in different planes that form an angle with the first plane of the light-transmitting resin sheet of about 35°
- to about 75°
.
- to about 75°
Specification