Solid-state light-emitting element, light-emitting device, and lighting device
First Claim
1. A solid-state light-emitting element comprising:
- a structure body configured to transmit visible light, the structure body including a first surface and a second surface opposite to the first surface;
a layer over the first surface of the structure body, the layer having a refractive index higher than that of the structure body; and
a light-emitting body over the layer,wherein the first surface includes a first hemispherical pattern,wherein the second surface includes a second hemispherical pattern,wherein a pitch of the first hemispherical pattern is different from a pitch of the second hemispherical pattern, andwherein the first hemispherical pattern includes a micro lens array.
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Abstract
A solid-state light-emitting element includes a structure body having a property of transmitting visible light and an uneven structure on each of the top side and the bottom side thereof; a high refractive index material layer provided on one surface of the structure body; and a light-emitting body with a refractive index of greater than or equal to 1.6 provided over the high refractive index material layer. One surface of the high refractive index material layer is flatter than the other surface thereof which is in contact with the structure body. The refractive index of the high refractive index material layer is greater than or equal to 1.6. The refractive index of the structure body is greater than 1.0 and less than that of the high refractive index material layer.
61 Citations
18 Claims
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1. A solid-state light-emitting element comprising:
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a structure body configured to transmit visible light, the structure body including a first surface and a second surface opposite to the first surface; a layer over the first surface of the structure body, the layer having a refractive index higher than that of the structure body; and a light-emitting body over the layer, wherein the first surface includes a first hemispherical pattern, wherein the second surface includes a second hemispherical pattern, wherein a pitch of the first hemispherical pattern is different from a pitch of the second hemispherical pattern, and wherein the first hemispherical pattern includes a micro lens array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A solid-state light-emitting element comprising:
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a structure body configured to transmit visible light, the structure body including a first surface and a second surface opposite to the first surface; a layer over the first surface of the structure body, the layer having a refractive index higher than that of the structure body; and a light-emitting body over the layer, wherein the first surface includes a first hemispherical pattern, wherein the second surface includes a second hemispherical pattern, wherein a pitch of the first hemispherical pattern is narrower than a pitch of the second hemispherical pattern, and wherein the first hemispherical pattern includes a micro lens array. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification