Light emitting device and lighting system having the same

A light emitting device comprising:

• a body including first and second lateral side parts corresponding to each other, third and fourth lateral side parts corresponding to each other, and a cavity having an open upper portion;
• a first lead frame disposed on a bottom surface of the cavity while extending in a direction of the first lateral side part of the body;
• a second lead frame disposed on the bottom surface of the cavity while extending in a direction of the second lateral side part of the body;
• a gap part disposed on the bottom surface of the cavity and disposed between the first and second lead frames;
• a light emitting chip disposed on the first lead frame in the cavity;
• and
• a molding member in the cavity,
• wherein the first lead frame includes a first recess part recessed at a first depth in the direction of the first lateral side part of the body from the gap part and a second recess part recessed at a second depth in a region adjacent to the first lateral side part of the body, and the first depth of the first recess part is different from the second depth of the second recess part,
• wherein the body includes a reflective insulating material,
• wherein the molding member includes a transmissive resin material,
• wherein the cavity is recessed from a top surface of the body,
• wherein the cavity includes a first inner surface which faces a first lateral side of the light emitting chip, a second inner surface which faces the first inner surface, a third inner surface extended from the first inner surface, a fourth inner surface extended from the first inner surface and which faces the third inner surface, a fifth inner surface disposed between the second and third inner surfaces, and a sixth inner surface disposed between the second and fourth inner surfaces,
• wherein the first, second, third, fourth, fifth and sixth inner surfaces of the cavity contact the molding member,
• wherein the second inner surface has a second width narrower than a first width of the first inner surface,
• wherein the second width is wider than a width of the first lateral side of the light emitting chip,
• wherein a width of the fifth inner surface is narrower than the first width and wider than the second width, and
• wherein an internal angle between the fifth inner surface and the second inner surface is an obtuse angle,
• wherein the first recess part is overlapped with the light emitting chip in a vertical direction, and
• wherein the first inner surface and the second inner surface are inclined with respect to a horizontal bottom surface of the body,
• wherein the first lead frame further includes plurality of first protrusions exposed to the first lateral side part of the body, second protrusion exposed to the third lateral side part of the body, and third protrusion exposed to the fourth lateral side part of the body, and
• wherein the first lead frame includes a first region adjacent to the gap part on the first recess part and a second region adjacent to the first lateral side part, the first region has a thickness thinner than a thickness of the second region and is overlapped with the first recess part, and the second protrusion and the third protrusion protrude from the first region adjacent to the gap part.

A light emitting device comprising:

• a body including first and second lateral side parts corresponding to each other, third and fourth lateral side parts corresponding to each other, and a cavity having an open upper portion;
• a first lead frame disposed on a bottom surface of the cavity while extending in a direction of the first lateral side part of the body;
• a second lead frame disposed on the bottom surface of the cavity while extending in a direction of the second lateral side part of the body;
• a gap part disposed on the bottom surface of the cavity and disposed between the first and second lead frames;
• a light emitting chip disposed on the first lead frame in the cavity;
• and
• a molding member in the cavity,
• wherein the body includes a reflective insulating material,
• wherein the molding member includes a transmissive resin material,
• wherein the cavity is recessed from a top surface of the body,
• wherein the cavity includes a first inner surface which faces a first lateral side of the light emitting chip, a second inner surface which faces the first inner surface, a third inner surface extended from the first inner surface, a fourth inner surface extended from the first inner surface and which faces the third inner surface, a fifth inner surface disposed between the second and third inner surfaces, and a sixth inner surface disposed between the second and fourth inner surfaces,
• wherein the second inner surface has a second width narrower than a first width of the first inner surface,
• wherein the second width is wider than a width of the first lateral side of the light emitting chip,
• wherein a width of the fifth inner surface is narrower than the first width and wider than the second width,
• wherein an internal angle between the fifth inner surface and the second inner surface is an obtuse angle,
• wherein a width of the sixth inner surface is narrower than the first width and wider than the second width,
• wherein the first, second, third, fourth, fifth and sixth inner surfaces of the cavity contact the molding member,
• wherein the first recess part is overlapped with the light emitting chip in a vertical direction,
• wherein a portion of the gap part is disposed in the first recess, and
• wherein the first lead frame further includes plurality of first protrusions exposed to the first lateral side part of the body, second protrusion exposed to the third lateral side part of the body, and third protrusion exposed to the fourth lateral side part of the body, and
• wherein the first lead frame includes a first region adjacent to the gap part on the first recess part and a second region adjacent to the first lateral side part, the first region has a thickness thinner than a thickness of the second region and is overlapped with the first recess part, and the second protrusion and third protrusion protrude from the first region adjacent to the gap part,
• wherein the first protrusions of the first lead frame are spaced apart from each other,
• wherein bottom surface of each of the first protrusions is a curved surface and contact the body,
• wherein the second lead frame further includes plurality of fourth protrusions exposed to the second lateral side part of the body, fifth protrusion exposed to the third lateral side part of the body, and sixth protrusion exposed to the fourth lateral side part of the body,
• wherein the fourth protrusions of the second lead frame are spaced apart from each other, and
• wherein a bottom surface of each of the fourth protrusions is a curved surface and contact the body.