LED Lamp
DCFirst Claim
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1. An LED lamp comprising:
- a substrate;
a cluster of LED chips, which are arranged two-dimensionally on the substrate; and
a plurality of phosphor resin portions that cover the respective LED chips,wherein each said phosphor resin portion includes a phosphor for transforming the emission of its associated LED chip into a light ray having a longer wavelength than that of the emission, andwherein a size of the phosphor resin portions, which cover the LED chips located in an outer region of the cluster, is set bigger than that of the other phosphor resin portions, which cover the LED chips located in the remaining non-outer region.
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Abstract
According to the present invention, a substrate 11, a cluster of LED chips, which are arranged two-dimensionally on the substrate 11, and a plurality of phosphor resin portions 13a, 13b that cover the respective LED chips are provided. The phosphor resin portion 13a, 13b includes a phosphor for transforming the emission of its associated LED chip into a light ray having a longer wavelength than that of the emission. A size of the phosphor resin portions 13b, which cover the LED chips located in an outer region of the cluster, is set bigger than that of the other phosphor resin portions 13a, which cover the LED chips located in the remaining non-outer region.
44 Citations
11 Claims
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1. An LED lamp comprising:
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a substrate; a cluster of LED chips, which are arranged two-dimensionally on the substrate; and a plurality of phosphor resin portions that cover the respective LED chips, wherein each said phosphor resin portion includes a phosphor for transforming the emission of its associated LED chip into a light ray having a longer wavelength than that of the emission, and wherein a size of the phosphor resin portions, which cover the LED chips located in an outer region of the cluster, is set bigger than that of the other phosphor resin portions, which cover the LED chips located in the remaining non-outer region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for fabricating an LED lamp, the method comprising the steps of:
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arranging a cluster of LED chips on a substrate; and providing a plurality of phosphor resin portions such that the LED chips are covered with the phosphor resin portions, each said phosphor resin portion including a phosphor that transforms the emission of its associated LED chip into a light ray having a longer wavelength than the emission, wherein the step of providing the phosphor resin portions includes the step of setting, if a reference position is defined with respect to the cluster of LED chips, the size of the phosphor resin portions, covering the LED chips that are located most distant from the reference position, bigger than that of the phosphor resin portion covering the LED chip at the reference position.
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Specification