Light emitting device and illumination apparatus including same
AssigneePanasonic Corporation
InventorRyoji Yokotani
Life of this patent
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Abstract
A light emitting device includes a solid-state light emitting element; and a wavelength converting member made of a transparent resin containing a fluorescent material, the transparent resin being coated on an output surface of the solid-state light emitting element. The wavelength converting member is formed to have a thickness larger in a vertical direction of the solid-state light emitting element than that in a lateral direction of the solid-state light emitting element in a cross section that is parallel to a light output direction of the solid-state light emitting element and have a zenith in the light output direction.
Claims16
A light emitting device comprising:
- a solid-state light emitting element;
- and
- a wavelength converting member made of a transparent resin containing a fluorescent material, the transparent resin being coated on an output surface of the solid-state light emitting element,
- wherein the wavelength converting member is formed to have a thickness larger in a vertical direction of the solid-state light emitting element than that in a lateral direction of the solid-state light emitting element in a cross section that is parallel to a light output direction of the solid-state light emitting element and have a zenith in the light output direction, and
- wherein the wavelength converting member is formed to have a vertically long triangular shape in the cross section.
A light emitting device comprising:
- a solid-state light emitting element;
- and
- a wavelength converting member made of a transparent resin containing a fluorescent material, the transparent resin being coated on an output surface of the solid-state light emitting element,
- wherein the wavelength converting member is formed to have a thickness larger in a vertical direction of the solid-state light emitting element than that in a lateral direction of the solid-state light emitting element in a cross section that is parallel to a light output direction of the solid-state light emitting element and have a zenith in the light output direction, and
- wherein the wavelength converting member is formed to have an ellipsoidal shape when viewed from above.
A light emitting device comprising:
- a solid-state light emitting element;
- and
- a wavelength converting member made of a transparent resin containing a fluorescent material, the transparent resin being coated on an output surface of the solid-state light emitting element,
- wherein the wavelength converting member is formed to have a thickness larger in a vertical direction of the solid-state light emitting element than that in a lateral direction of the solid-state light emitting element in a cross section that is parallel to a light output direction of the solid-state light emitting element and have a zenith in the light output direction, and
- wherein the wavelength converting member has a concave portion formed in a side facing the solid-state light emitting element, and is formed as a thin member having uniform thickness, the concave portion being filled with a transparent resin.
Dependencies are inferred from the claim text.