Lighting device and method of manufacturing the same
View Patent ↗In a first aspect of the present invention, a lighting device includes a light-emitting element, a frame including a phosphor that can be excited by light emitted from the light-emitting element, the frame having an inner side surface surrounding the light-emitting element and an outer side surface being positioned outside the inner side surface that demarcates a quadrilateral area, and a light-transmitting resin arranged in the quadrilateral area demarcated by the inner side surface of the frame and sealing the light-emitting element that is positioned inside the quadrilateral area, and the light-transmitting resin being further provided in contact with an outer side surface of the frame. In some embodiments, it is disclosed that the light-transmitting resin provided in contact with the outer side surface of the frame may include a diffuser.
1. A lighting device comprising:
a light-emitting element;
a frame comprising a phosphor that can be excited by light emitted from the light-emitting element, the frame having an inner side surface surrounding the light-emitting element and an outer side surface being positioned outside the inner side surface that demarcates a quadrilateral area; and
a light-transmitting resin arranged in the quadrilateral area demarcated by the inner side surface of the frame and sealing the light-emitting element that is positioned inside the quadrilateral area, and
the light-transmitting resin being further provided in contact with the outer side surface of the frame.
2. The lighting device according to claim 1 ,
wherein the light-transmitting resin that is arranged in the quadrilateral area demarcated by the inner side surface of the frame and the light-transmitting resin provided in contact with the outer side surface of the frame are separated from each other by the frame.
3. The lighting device according to claim 2 ,
wherein the light-transmitting resin provided in contact with the outer side surface of the frame comprises a diffuser.
4. The lighting device according to claim 1 ,
wherein the outer side surface of the frame positioned outside and opposite to the inner side surface that demarcates a quadrilateral area is covered by the light-transmitting resin.
5. The lighting device according to claim 1 further comprising:
a substrate comprising a pair of electrodes, and
the light-emitting element being electrically connected to the pair of electrodes of the substrate.
6. The lighting device according to claim 1 further comprising:
a substrate comprising a pair of electrodes and a cut portion that is cut into the upper surface of the substrate;
the light-emitting element being electrically connected to the pair of electrodes of the substrate, and
a lower surface of the frame being positioned in the cut portion of the substrate.
7. The lighting device according to claim 1 ,
wherein the frame includes four phosphor layers with the inner side surface that faces a peripheral side surface of the light-emitting element, and the four phosphor layers of the frame has a substantially same thickness to each other in direction facing the peripheral side surface of the light-emitting element.
8. The lighting device according to claim 1 ,
wherein the frame comprises a crossing portion at a corner of the frame.
9. The lighting device according to claim 3 , wherein the light-transmitting resin and the frame comprising the phosphor form a light-emitting parallelepiped on the substrate.
10. The lighting device according to claim 7 further comprising:
a phosphor layer comprising a phosphor and disposed on an upper surface of the light-emitting parallelepiped on the substrate.
11. The lighting device according to claim 7 further comprising:
a light-reflecting layer disposed on an upper surface of the light-emitting parallelepiped on the substrate.
12. The lighting device according to claim 4 ,
wherein the light-transmitting resin and the frame comprising the phosphor form a light-emitting parallelepiped on the substrate.
13. The lighting device according to claim 10 further comprising:
a light-reflecting layer disposed on an upper surface of the light-emitting parallelepiped on the substrate.
14. A lighting device comprising:
a light-emitting element;
a frame comprising a phosphor that can be excited by light emitted from the light-emitting element, the frame having an inner side surface surrounding the light-emitting element and an outer side surface being positioned outside the inner side surface that demarcates a quadrilateral area; and
a substrate comprising a pair of electrodes and a cut portion that is cut into the upper surface of the substrate;
the light-emitting element being electrically connected to the pair of electrodes of the substrate, and
a lower surface of the frame being positioned in the cut portion of the substrate.