Light emitting diode lighting appliance and light emitting diode emergency light using the same,申请号EP20040256072-传众专利搜索

Light emitting diode lighting appliance and light emitting diode emergency light using the same

申请公布号：EP1521031(A2)

申请号：EP20040256072

申请日期：2004.09.30

申请公布日期：2005.04.06

申请人：

TOSHIBA LIGHTING & TECHNOLOGYCORPORATION

发明人：SHIMIZU, KEIICHI;IWAMOTO, MASAMI;MORIYAMA, TAKAYOSHI;NAKANISHI, AKIKO;EGAWA, KAZUO

分类号：F21S8/02;F21S9/02;F21V5/04;F21V7/00

主分类号：F21S8/02

摘要：An LED lighting appliance (1,26) is provided with; a housing (6) having an open end and a bottom (6a), an LED (2), a lens (3), and a lighting device (8,27) for lighting the LED (2), respectively accommodated in the housing (6), wherein the LED (2) is placed to the bottom (6a) of the housing (6), the lens (3) has a barrel-shape body having a concave incidence end (3a) directly facing the LED (2), a generally flat exit end (3b) exposing to the open end and a sidewall (3c) bulging in a barrel-shaped, wherein the concave incidence end (3a) is defined that a light, emitted from the LED (2) and entered in the barrel-shape body at around the center of the concave surface (3a), performs substantially a total reflection on a major portion of an interface defined by the sidewall (3c), and the reflected light refracts at the exit end (3b) and exits from the barrel-shape body in the receding direction from a central axis of the barrel-shape body.