Package for housing light-emitting element, light-emitting apparatus and illumination apparatus
First Claim
1. A package for housing a light-emitting element comprising:
- a base body made of ceramics and having, on its upper surface, a mounting portion for mounting thereon a light-emitting element;
a frame body joined to an outer periphery of the upper surface of the base body so as to surround the mounting portion, an inner peripheral surface of which is shaped into a reflection surface for reflecting light emitted from the light-emitting element; and
a wiring conductor having its one end formed on the upper surface of the base body so as to be electrically connected to an electrode of the light-emitting element, and another end led out to a side or lower surface of the base body, wherein the base body is so designed that crystal grains contained in the ceramics range in average particle diameter from 1 to 5 μ
m.
1 Assignment
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Accused Products
Abstract
A light-emitting apparatus provides a ceramic-made base body, a frame body, a light-emitting element, a conductor layer and a light-transmitting member. The base body has on its upper surface a mounting portion for the light-emitting element. The frame body is joined to the upper surface of the base body so as to surround the mounting portion, with its inner peripheral surface shaped into a reflection surface. The wiring conductor has its one end formed on the upper surface of the base body and electrically connected to the light-emitting element, and has another end led to a side or lower surface of the base body. The light-transmitting member is disposed inside the frame body so as to cover the light-emitting element, which contains fluorescent materials for performing wavelength conversion. The base body is so designed that ceramic crystal grains range in average particle diameter from 1 to 5 μm.
107 Citations
25 Claims
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1. A package for housing a light-emitting element comprising:
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a base body made of ceramics and having, on its upper surface, a mounting portion for mounting thereon a light-emitting element;
a frame body joined to an outer periphery of the upper surface of the base body so as to surround the mounting portion, an inner peripheral surface of which is shaped into a reflection surface for reflecting light emitted from the light-emitting element; and
a wiring conductor having its one end formed on the upper surface of the base body so as to be electrically connected to an electrode of the light-emitting element, and another end led out to a side or lower surface of the base body, wherein the base body is so designed that crystal grains contained in the ceramics range in average particle diameter from 1 to 5 μ
m. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 22, 23)
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16. A light-emitting apparatus comprising:
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a base body formed in a platy shape and made of ceramics;
a light-emitting element; and
a reflection member joined to an upper surface of the base body, which has, at a center of its upper principal surface, a convex mounting portion for mounting thereon the light-emitting element, and further has, at an outer periphery of its upper principal surface, a side wall portion formed so as to surround the mounting portion, an inner peripheral surface of which side wall portion is shaped into a reflection surface for reflecting light emitted from the light-emitting element, wherein the base body is so designed that crystal grains contained in the ceramics range in average particle diameter from 1 to 5 μ
m. - View Dependent Claims (17, 18, 19, 20, 21, 24, 25)
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Specification