Light emitting device package

Abstract

An ultraviolet light emitting device package can include a first conductive member and second conductive members; a light emitting device to emit ultraviolet light and disposed on the first conductive member; an aluminum reflector on the second conductive members, the aluminum reflector having a hollow portion in which the light emitting device is disposed, and configured to reflect ultraviolet light emitted from the light emitting device; a cover glass on the aluminum reflector and the light emitting device; and an insulator between the aluminum reflector and the second conductive members, in which the first conductive member is insulated from the light emitting device and the second conductive members, a middle area of the first conductive member corresponds to a middle area of the hollow portion, the light emitting device is disposed on the middle area of the first conductive member, the second conductive members are disposed on both sides of the first conductive member, symmetrically, and the second conductive members are electrically connected to the light emitting device, both outermost edges of the aluminum reflector protrude farther than corresponding outermost edges of the second conductive members.

What is claimed is: 
     
         1 . An ultraviolet light emitting device package comprising:
 a first conductive member and second conductive members;   a light emitting device configured to emit ultraviolet light and disposed on the first conductive member;   an aluminum reflector disposed on the second conductive members, the aluminum reflector having a hollow portion in which the light emitting device is disposed, and configured to reflect ultraviolet light emitted from the light emitting device;   a cover glass disposed on the aluminum reflector and the light emitting device; and   an insulator disposed between the aluminum reflector and the second conductive members,   wherein the first conductive member is insulated from the light emitting device and the second conductive members,   wherein a middle area of the first conductive member corresponds to a middle area of the hollow portion,   wherein the light emitting device is disposed on the middle area of the first conductive member,   wherein the second conductive members are disposed on both sides of the first conductive member, symmetrically, and the second conductive members are electrically connected to the light emitting device,   wherein both outermost edges of the aluminum reflector protrude farther than corresponding outermost edges of the second conductive members,   wherein a first bent portion of the first conductive member overlaps with the hollow portion of the aluminum reflector and corresponds to a second bent portion of one of the second conductive members, and   wherein the aluminum reflector to supports the cover glass.   
     
     
         2 . The ultraviolet light emitting device package of  claim 1 , wherein an uppermost portion of the first conductive member is wider than a lowermost portion of the first conductive member. 
     
     
         3 . The ultraviolet light emitting device package of  claim 1 , wherein the both outermost edges of the aluminum reflector protrude farther than corresponding outermost edges of the cover glass. 
     
     
         4 . The ultraviolet light emitting device package of  claim 1 , wherein a thickness of the insulator is in a range from 0.1 mm to 0.15 mm. 
     
     
         5 . The ultraviolet light emitting device package of  claim 1 , wherein an uppermost portion of the first conductive member is separated from uppermost portions of the second conductive members by a first distance, and
 wherein a lowermost portion of the first conductive member is separated from lowermost portions of the second conductive members by a second distance greater than the first distance.   
     
     
         6 . The ultraviolet light emitting device package of  claim 1 , wherein the light emitting device is configured to emit deep ultraviolet light having a wavelength among 190 nm to 400 nm. 
     
     
         7 . The ultraviolet light emitting device package of  claim 1 , wherein the light emitting device is configured to emit deep ultraviolet light having a wavelength among 250 nm to 280 nm. 
     
     
         8 . The ultraviolet light emitting device package of  claim 1 , further comprising:
 a sub mount disposed on the first conductive member,   wherein the light emitting device is mounted on the sub mount.   
     
     
         9 . The ultraviolet light emitting device package of  claim 8 , wherein the sub mount is made of AlN. 
     
     
         10 . The ultraviolet light emitting device package of  claim 1 , further comprising:
 a wire electrically connecting the light emitting device with one of the second conductive members.   
     
     
         11 . The ultraviolet light emitting device package of  claim 10 , further comprising:
 a sub mount disposed on the first conductive member,   wherein the light emitting device is mounted on the sub mount, and   wherein an end of the wire is connected to the sub mount.   
     
     
         12 . The ultraviolet light emitting device package of  claim 1 , wherein the aluminum reflector has a concave circular shape. 
     
     
         13 . The ultraviolet light emitting device package of  claim 1 , further comprising:
 a sealing resin material filled between the aluminum reflector and the cover glass.   
     
     
         14 . The ultraviolet light emitting device package of  claim 1 , wherein a thickness of the first conductive member is in a range from 0.5 mm to 1.5 mm, and thicknesses of the second conductive members are in a range from 0.5 mm to 1.5 mm. 
     
     
         15 . The ultraviolet light emitting device package of  claim 14 , wherein the first conductive member and the second conductive members have a same thickness. 
     
     
         16 . The ultraviolet light emitting device package of  claim 1 , wherein a vertex of the first conductive member is adjacent to a concave portion of one of the second conductive members. 
     
     
         17 . The ultraviolet light emitting device package of  claim 1 , wherein the insulator is disposed between the aluminum reflector and an outermost edge of at least one of the second conductive members. 
     
     
         18 . The ultraviolet light emitting device package of  claim 1 , wherein a third bent portion of the first conductive member overlaps with the hollow portion of the aluminum reflector and corresponds to a fourth bent portion of one of the second conductive members,
 wherein a fifth bent portion of the first conductive member overlaps with the hollow portion of the aluminum reflector and corresponds to a sixth bent portion of one of the second conductive members, and   wherein a seventh bent portion of the first conductive member overlaps with the hollow portion of the aluminum reflector and corresponds to an eighth bent portion of one of the second conductive members.   
     
     
         19 . The ultraviolet light emitting device package of  claim 1 , wherein the aluminum reflector includes a curved portion overlapping with a portion of one of the second conductive members. 
     
     
         20 . The ultraviolet light emitting device package of  claim 1 , wherein a distance between opposite outermost ends of the aluminum reflector is greater than a distance between opposite outermost ends of the second conductive members.