Optical semiconductor lighting apparatus

Abstract

An optical semiconductor lighting apparatus includes a housing including a groove, a light-emitting module disposed in the housing, the light-emitting module including a semiconductor optical device, a sealing body disposed in the groove, the sealing body including a main portion and a first rib extending from the main portion, and an optical cover disposed on the housing and covering the groove and the light-emitting module, wherein a first open space is disposed between the optical cover, the first rib, the main portion of the sealing body, and a side surface of the groove.

What is claimed is: 
     
         1 . An optical semiconductor lighting apparatus, comprising:
 a housing comprising a groove;   a light-emitting module disposed in the housing, the light-emitting module comprising a semiconductor optical device;   a sealing body disposed in the groove, the sealing body comprising a main portion and a first rib extending from the main portion; and   an optical cover disposed on the housing and covering the groove and the light-emitting module,   wherein a first open space is disposed between the optical cover, the first rib, the main portion of the sealing body, and a side surface of the groove.   
     
     
         2 . The optical semiconductor lighting apparatus of  claim 1 , wherein the first rib extends from a top surface of the main portion of the sealing body along a forming direction of the sealing body. 
     
     
         3 . The optical semiconductor lighting apparatus of  claim 2 , wherein the first rib contacts the optical cover. 
     
     
         4 . The optical semiconductor lighting apparatus of  claim 1 , wherein a pair of second ribs extend in parallel from both edges of a bottom surface of the main portion of the sealing body. 
     
     
         5 . The optical semiconductor lighting apparatus of  claim 4 , wherein a second open space is disposed between the second ribs, the bottom surface of the main portion of the first sealing body, and a bottom surface of the groove. 
     
     
         6 . The optical semiconductor lighting apparatus of  claim 1 , wherein the sealing body is configured to elastically deform according to a load and pressure on the optical cover. 
     
     
         7 . The optical semiconductor lighting apparatus of  claim 5 , wherein the first and second open spaces accommodate elastic deformation of the sealing body in the groove. 
     
     
         8 . The optical semiconductor lighting apparatus of  claim 5 , wherein the first open space and the second open space are disposed on opposing sides of the sealing body. 
     
     
         9 . An optical semiconductor lighting apparatus, comprising:
 a light-emitting module comprising a semiconductor optical device;   a housing supporting the light-emitting module, the housing comprising a groove disposed around the light-emitting module;   an optical cover disposed on the housing and covering the light-emitting module and the groove; and   a sealing element disposed in the groove and comprising a body and a first rib that extends from the body and contacts the first optical cover, such that the body is spaced apart from the optical cover by a first air gap disposed on opposing sides of the first rib.   
     
     
         10 . The optical semiconductor lighting apparatus of  claim 9 , wherein the sealing element further comprises second ribs extending from opposing sides of the body and contacting the bottom of the groove, such that a second air gap is formed between the body and the bottom of the groove. 
     
     
         11 . The optical semiconductor lighting apparatus of  claim 9 , wherein the first air gap and the second air gap are disposed on opposing sides of the body.