Ultraviolet light emitting diode package
View Patent ↗An ultraviolet light emitting diode package for emitting ultraviolet light is disclosed. The ultraviolet light emitting diode package comprises an LED chip emitting light with a peak wavelength of 350 nm or less, and a protective member provided so that surroundings of the LED chip is covered to protect the LED chip, the protective member having a non-yellowing property to energy from the LED chip.
1. An ultraviolet light emitting diode (UV LED) assembly, comprising:
a base;
a reflective cup arranged on the base and comprising a bottom portion and a side inclined portion;
an LED chip arranged on the bottom portion of the reflective cup; and
a protective member arranged on the reflective cup,
wherein the protective member comprises a cap comprising an upper surface comprising an opening, and a lens disposed in the opening, and
wherein the diameter of the lens is approximately equal to the inner diameter of an upper end of the reflective cup.
2. The UV LED assembly of claim 1 , wherein the lens comprises a glass material.
3. The UV LED assembly of claim 2 , wherein the lens comprises quartz.
4. The UV LED assembly of claim 1 , further comprising:
a first lead hole formed in the side inclined portion of the reflective cup; and
a lead that extends through the base and the first lead hole.
5. The UV LED assembly of claim 1 , wherein the reflective cup comprises aluminum.
6. The UV LED assembly of claim 1 , wherein the reflective cup comprises a heat dissipation member.
7. The UV LED package as claimed in claim 6 , wherein the heat dissipation member comprises:
a groove portion provided on an upper portion thereof, the LED chip being mounted in the groove portion; and
a sidewall surface of the groove portion is inclined.
8. The UV LED assembly of claim 1 , wherein light is configured to pass directly from the LED chip through the lens to the outside of the UV LED assembly.
9. The UV LED assembly of claim 1 , wherein the opening in the upper surface of the cap comprises substantially non-curved sides.
10. The UV LED assembly of claim 9 , wherein the lens comprises substantially non-curved sides contacting the cap sides in the opening.
11. The UV LED assembly of claim 1 , wherein the interior of the protective member is filled with N 2 or air.
12. The UV LED assembly of claim 1 , wherein the cap and the lens are exposed to the outside of the UV LED apparatus.
13. The UV LED assembly of claim 1 , wherein the cap comprises an open bottom end.
14. The UV LED assembly of claim 1 , wherein the cap comprises a metallic material.
15. The UV LED assembly of claim 1 , wherein the lens contacts the cap in the opening.
16. An ultraviolet light emitting diode (UV LED) assembly, comprising:
a base;
a reflective cup arranged on the base and comprising a bottom portion and a side inclined portion;
an LED chip arranged on the bottom portion of the reflective cup; and
a protective member arranged on the reflective cup,
wherein the protective member comprises a cap and a lens, the cap and the lens being exposed to the outside of the UV LED apparatus, and
wherein the diameter of the lens is approximately equal to the inner diameter of an upper end of the reflective cup.