公开(公告)号：US20030031015A1

公开(公告)日：2003-02-13

申请号：US10147119

申请日：2002-05-16

Applicant: ATEX Co. Ltd.

Inventor： Kazuo Ishibashi

IPC: F21V021/00

CPC classification number: F21V3/00 ,  F21K9/232 ,  F21Y2107/00 ,  F21Y2107/20 ,  F21Y2115/10 ,  H01L25/13 ,  H01L2924/0002 ,  Y10S362/80 ,  H01L2924/00

Abstract: Provided is an LED bulb with a higher distribution of luminous intensity which is close to those of tungsten bulbs, in which the problem in directivity of the prior art LED bulbs has been solved while maintaining the advantages of an LED, that is, a long life and an energy saving characteristic. The LED bulb comprises a printed circuit board 5 which is flat when developed and is bendable to form a cage, a plurality of LEDs 6 which are disposed on the printed circuit board 5, and a transparent or semi-transparent cover 2 which encloses the printed circuit board 5 formed into the cage. The printed circuit board 5 may have a plurality of belt-like branches 5a which extend in radial directions from the center of the printed circuit board 5. The LED bulb may further comprise a power unit housing 8 for containing a power unit which supplies electric current to each of the LEDs 6.

Abstract translation: 提供了具有较高发光强度分布的LED灯泡，其接近钨灯泡的LED灯泡，其中已经解决了现有技术的LED灯泡的方向性问题，同时保持了LED的优点，即长寿命 和节能特点。 LED灯泡包括印刷电路板5，其在显影时是平坦的并且可弯曲以形成保持架，布置在印刷电路板5上的多个LED 6和包围印刷电路板的透明或半透明盖2 电路板5形成笼。 印刷电路板5可以具有从印刷电路板5的中心沿径向延伸的多个带状分支5a。LED灯泡还可以包括用于容纳提供电流的功率单元的动力单元壳体8 到每个LED 6。