JP2004111937A5 - - Google Patents

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JP2004111937A5
JP2004111937A5 JP2003298801A JP2003298801A JP2004111937A5 JP 2004111937 A5 JP2004111937 A5 JP 2004111937A5 JP 2003298801 A JP2003298801 A JP 2003298801A JP 2003298801 A JP2003298801 A JP 2003298801A JP 2004111937 A5 JP2004111937 A5 JP 2004111937A5
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light emitting
concave portion
light
mold member
ceramic base
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JP2003298801A
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JP2004111937A (en
JP4407204B2 (en
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以上の目的を達成するために本発明に係る発光装置は、凹部を有するセラミックパッケージと、上記凹部内に配置された発光素子と、上記凹部の側壁に設けられ上記発光素子の光を反射させる光反射部と、上記凹部内を封止するモールド部材と、を備えた発光装置であって、上記セラミックパッケージは、その上面方向から見て、上記光反射部の周囲に露出している第一のセラミック素地部と、を備えており、上記モールド部材が、少なくとも上記光反射部と上記第一のセラミック素地部とを被覆することを特徴とする。このように構成すると、モールド部材とセラミックパッケージとの間に生じる応力が緩和されるため、モールド部材とパッケージとの剥離が生じることがなくなる。さらに、光反射部に入射する光は発光観測面方向に反射されるため、高輝度、高放熱、かつ信頼性の高い発光装置とすることができる。   In order to achieve the above object, a light emitting device according to the present invention includes a ceramic package having a concave portion, a light emitting element disposed in the concave portion, and light provided on a side wall of the concave portion and reflecting light of the light emitting element. A light emitting device, comprising: a reflecting portion; and a mold member for sealing the inside of the concave portion, wherein the ceramic package is exposed around the light reflecting portion when viewed from above. A ceramic base portion, wherein the mold member covers at least the light reflection portion and the first ceramic base portion. With this configuration, since the stress generated between the mold member and the ceramic package is reduced, the mold member does not peel off from the package. Furthermore, since the light incident on the light reflecting portion is reflected in the direction of the light emission observation surface, a light emitting device with high luminance, high heat radiation, and high reliability can be provided.

上記セラミックパッケージは、上記発光素子の少なくとも一部を包囲するとともに、上記光反射部の内側に設けられる第二のセラミック素地部をさらに備え、上記モールド部材がさらに上記第二のセラミック素地部を被覆する。また、上記第一のセラミック素地部と上記第二のセラミック素地部とが、少なくとも一対の互いに略平行な面を備えており、その面を上記モールド部材が被覆することが好ましい。上記セラミックパッケージは、上記凹部の開口部に階段状のセラミック素地部を有することが好ましい。また、本発明は、凹部を有するセラミックパッケージと、上記凹部内に配置された発光素子と、上記凹部の内壁面からセラミックパッケージの上面にかけて連続して設けられた光反射部と、上記凹部内を封止するモールド部材と、を備えており、上記モールド部材が、上記凹部の内壁面の一部と、上記凹部の底面と、に露出されたセラミック素地部を被覆することを特徴とする。上記凹部は、その底面に載置された発光素子に対し互いにほぼ対称な形状を含み、かつ上記モールド部材に被覆された複数のセラミック素地部を有することが好ましい。   The ceramic package further surrounds at least a part of the light emitting element, and further includes a second ceramic base provided inside the light reflection unit, and the mold member further covers the second ceramic base. I do. In addition, it is preferable that the first ceramic base and the second ceramic base have at least a pair of substantially parallel surfaces, and the surfaces are covered by the mold member. It is preferable that the ceramic package has a stepped ceramic base portion in the opening of the concave portion. Further, the present invention provides a ceramic package having a concave portion, a light emitting element disposed in the concave portion, a light reflecting portion continuously provided from an inner wall surface of the concave portion to an upper surface of the ceramic package, and And a mold member for sealing, wherein the mold member covers the ceramic body exposed on a part of the inner wall surface of the concave portion and the bottom surface of the concave portion. It is preferable that the concave portion has a shape substantially symmetrical to the light emitting element mounted on the bottom surface thereof and has a plurality of ceramic base portions covered with the mold member.

このように構成すると、モールド部材とセラミックパッケージとの間に生じる応力が相殺しあうことにより緩和され、モールド部材とパッケージの剥離を生じさせることなく、さらに信頼性の高い発光装置とすることができる。   With such a configuration, the stress generated between the mold member and the ceramic package is offset by canceling each other, and the stress is reduced, and a more reliable light emitting device can be obtained without causing separation of the mold member and the package. .

上記発光素子は、ユウロピウムで付活されたアルカリ土類金属珪酸塩を備えることができる。このように構成することによって、発光素子からの光の一部が蛍光体に吸収され異なる波長を有する光を発光可能な発光装置とすることができる。
The light emitting element may include an alkaline earth metal silicate activated with europium. With such a structure, a light emitting device capable of emitting light having different wavelengths with a part of light from the light emitting element being absorbed by the phosphor can be obtained.

Claims (7)

凹部を有するセラミックパッケージと、前記凹部内に配置された発光素子と、前記凹部の側壁に設けられ前記発光素子の光を反射させる光反射部と、前記凹部内を封止するモールド部材と、を備えた発光装置であって、
前記セラミックパッケージは、その上面方向から見て、前記光反射部の周囲に露出している第一のセラミック素地部と、を備えており、
前記モールド部材が、少なくとも前記光反射部と前記第一のセラミック素地部とを被覆することを特徴とする発光装置。 A ceramic package having a concave portion, a light emitting element arranged in the concave portion, a light reflecting portion provided on a side wall of the concave portion and reflecting light of the light emitting element, and a mold member sealing the inside of the concave portion. A light emitting device comprising:
The ceramic package includes a first ceramic base portion that is exposed around the light reflecting portion when viewed from the upper surface direction,
The light emitting device according to claim 1, wherein the mold member covers at least the light reflecting portion and the first ceramic base portion. 前記発光素子の少なくとも一部を包囲するとともに、前記光反射部の内側に設けられる第二のセラミック素地部をさらに備え、前記モールド部材がさらに前記第二のセラミック素地部を被覆する請求項１に記載の発光装置。 2. The device according to claim 1, further comprising a second ceramic base portion surrounding at least a part of the light emitting element and provided inside the light reflecting portion, wherein the mold member further covers the second ceramic base portion. 3. The light-emitting device according to claim 1. 前記第一のセラミック素地部と前記第二のセラミック素地部とが、少なくとも一対の互いに略平行な面を備えており、その面を前記モールド部材が被覆する請求項１または２に記載の発光装置。 The light emitting device according to claim 1, wherein the first ceramic base portion and the second ceramic base portion have at least a pair of substantially parallel surfaces, and the surfaces are covered by the mold member. 4. . 前記セラミックパッケージは、前記凹部の開口部に階段状のセラミック素地部を有する請求項１から３のいずれか一項に記載の発光装置。 4. The light emitting device according to claim 1, wherein the ceramic package has a stepped ceramic base portion in an opening of the concave portion. 5. 凹部を有するセラミックパッケージと、前記凹部内に配置された発光素子と、前記凹部の内壁面からセラミックパッケージの上面にかけて連続して設けられた光反射部と、前記凹部内を封止するモールド部材と、を備えており、
前記モールド部材が、前記凹部の内壁面の一部と、前記凹部の底面と、に露出されたセラミック素地部を被覆することを特徴とする発光装置。 A ceramic package having a concave portion, a light-emitting element disposed in the concave portion, a light reflecting portion continuously provided from an inner wall surface of the concave portion to an upper surface of the ceramic package, and a mold member for sealing the inside of the concave portion. , And
The light emitting device according to claim 1, wherein the mold member covers a part of the inner wall surface of the concave portion and a bottom surface of the concave portion, the ceramic base portion being exposed. 前記凹部は、その底面に載置された発光素子に対し互いにほぼ対称な形状を含み、かつ前記モールド部材に被覆された複数のセラミック素地部を有する請求項１から５のいずれか一項に記載の発光装置。 The said recessed part contains the shape substantially symmetrical mutually with respect to the light emitting element mounted in the bottom surface, and has several ceramic base parts covered with the said mold member. Light emitting device. 前記発光素子は、ユウロピウムで付活されたアルカリ土類金属珪酸塩を備える請求項１から６のいずれか一項に記載の発光装置。 The light emitting device according to any one of claims 1 to 6, wherein the light emitting element includes an alkaline earth metal silicate activated with europium.
JP2003298801A 2002-08-30 2003-08-22 Light emitting device Expired - Lifetime JP4407204B2 (en)

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JP2002253536 2002-08-30
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JP2004111937A5 true JP2004111937A5 (en) 2006-05-11
JP4407204B2 JP4407204B2 (en) 2010-02-03

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