A light emitting module includes a light source board having a first surface and a second surface opposing the first surface and extending from one end to the other end, forming a spiral shape; at least one light source disposed on the first surface of the light source board; and a heat dissipation
A light emitting module includes a light source board having a first surface and a second surface opposing the first surface and extending from one end to the other end, forming a spiral shape; at least one light source disposed on the first surface of the light source board; and a heat dissipation plate disposed on the second surface of the light source board and provided with a contact surface having a spiral shape corresponding to that of the light source board.
대표청구항▼
1. A light emitting module comprising: a light source board having a first surface and a second surface opposing the first surface and extending from one end to the other end, forming a spiral shape;at least one light source disposed on the first surface of the light source board; anda heat dissipat
1. A light emitting module comprising: a light source board having a first surface and a second surface opposing the first surface and extending from one end to the other end, forming a spiral shape;at least one light source disposed on the first surface of the light source board; anda heat dissipation plate disposed on the second surface of the light source board and provided with a contact surface having a spiral shape corresponding to that of the light source board,wherein the contact surface of the heat dissipation plate is provided with an exposed region not covered by the second surface of the light source board. 2. The light emitting module of claim 1, wherein the heat dissipation plate includes at least one of materials selected from the group consisting of Ag, Al, Ni, Cr, Cu, Au, Pd, Pt, Sn, W, Rh, Ir, Ru, Mg, Zn, Ti, and alloys thereof. 3. The light emitting module of claim 1, wherein the heat dissipation plate further includes a stoppage protrusion disposed on the exposed region and contacting at least one of a lateral surface and the other end of the light source board. 4. The light emitting module of claim 1, wherein the light source board further includes at least one first protrusion disposed on the second surface thereof, and the heat dissipation plate further includes at least one first recess disposed in the contact surface thereof and accommodating the at least one first protrusion. 5. The light emitting module of claim 1, wherein the heat dissipation plate further includes at least one second protrusion disposed on the contact surface, and the light source board further includes at least one second recess disposed in the second surface and accommodating the at least one second protrusion. 6. The light emitting module of claim 1, wherein a thickness of the light source board ranges from about 0.6 mm to about 1.6 mm. 7. The light emitting module of claim 1, wherein the light source includes a semiconductor light emitting device. 8. The light emitting module of claim 1, wherein the light source board further includes a first concavo-convex portion disposed in at least a portion of a lateral surface thereof and provided to match the spiral shape of the light source board and the spiral shape of the contact surface provided in the heat dissipation plate, and the heat dissipation plate further includes a second concavo-convex portion disposed in a lateral surface thereof corresponding to the first concavo-convex portion of the light source board and having a shape corresponding to that of the first concavo-convex portion. 9. The light emitting module of claim 1, wherein a lateral surface of the light source board has a V-type cutaway surface. 10. The light emitting module of claim 1, wherein the light source board is a printed circuit board (PCB) on which a wiring pattern providing driving power to the at least one light source is formed. 11. The light emitting module of claim 1, wherein the first surface of the light source board is provided as a reflective surface. 12. A light emitting module comprising: a light source board having a first surface and a second surface opposing the first surface and extending from one end to the other end, forming a spiral shape;at least one light source disposed on the first surface of the light source board; anda heat dissipation plate disposed on the second surface of the light source board and provided with a contact surface having a spiral shape corresponding to that of the light source board,wherein the light source board includes at least one first through hole penetrating the light source board and provided to match the spiral shape of the light source board and the spiral shape of the contact surface provided in the heat dissipation plate, and the heat dissipation plate includes at least one second through hole penetrating the heat dissipation plate in a position corresponding to that of the first through hole of the light source board and having a shape corresponding to that of the first through hole. 13. The light emitting module of claim 12, wherein the first through hole is disposed in at least one of a region adjacent the one end of the light source board and a region adjacent the other end of the light source board. 14. A light emitting module comprising: a plurality of light sources;a light source board having a first surface on which the plurality of light sources are disposed and a second surface opposing the first surface, and having a first spiral shape; anda heat dissipation plate disposed on the second surface of the light source board, and extending from one end to the other end, forming a second spiral shape corresponding to the first spiral shape,wherein one of the light source board and the heat dissipation plate includes at least one protrusion, and the other one of the light source board and the heat dissipation plate includes at least one recess accommodating the at least one protrusion.
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