Light emitting device

• Main Authors: YOUNG-JIN NO, BYUNG-MOK KIM, SU-JUNG JUNG, BO-HEE KANG, HIROSHI KODAIRA
• Format: Patent
• Language: Chinese; English
• Published: 12.02.2014
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

A light emitting device may be provided that includes: a substrate; a body which is disposed on the substrate and has a first hole having a predetermined size; a light emitting chip which is disposed within a cavity formed by the substrate and the first hole of the body; a cap which is disposed on the body and has a second hole having a predetermined size; and a transparent window which is disposed in the second hole, wherein a lower portion of the cap is divided into a first surface and a second surface more projecting downwardly than the first surface and wherein at least a portion of the first surface is attached and fixed to the body. According to the invention, the light output efficiency and heat dissipation efficiency are increased and the reliability of the product is improved and the service life of the produce is prolonged.