US 7,511,312 B2
Surface mounting device-type light emitting diode
Joon Seok Chae, Seongnam-Si (Korea, Republic of); and Jong Hwan Baek, Seoul (Korea, Republic of)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon-Si, Gyunggi-Do (Korea, Republic of)
Filed on Apr. 06, 2007, as Appl. No. 11/697,638.
Claims priority of application No. 10-2006-0070622 (KR), filed on Jul. 27, 2006.
Prior Publication US 2008/0023714 A1, Jan. 31, 2008
Int. Cl. H01L 29/74 (2006.01)
U.S. Cl. 257—98  [257/99] 8 Claims
OG exemplary drawing
 
1. A surface mounting device-type light emitting diode (SMD-type LED) comprising:
a package housing one or more pairs of electrodes therein, the package having a predetermined space in the center thereof and a light-emission window which is opened so that light is emitted through the light-emission window;
a lens formed on the package so as to cover the light-emission window;
an LED chip formed on an electrode inside the package;
a wire for electrically connecting the LED chip and the electrode; and
a phosphor-mixed layer formed on the surface of the lens adjacent to the light-emission window;
wherein the surface of the lens having the phosphor-mixed layer formed thereon is formed with a groove concave toward the lens with respect to the surface of the light-emission window; and
wherein the concave groove is formed with an inclined surface which is tapered toward the central portion from both ends of the groove.