公开(公告)号：US20090097254A1

公开(公告)日：2009-04-16

申请号：US11887443

申请日：2005-11-18

Applicant: Satoshi Kawashima ,  Makoto Satoh ,  Hiroshi Johmen

Inventor： Satoshi Kawashima ,  Makoto Satoh ,  Hiroshi Johmen

IPC: F21V29/00

CPC classification number: F21V29/85 ,  F21S45/47 ,  F21V29/74 ,  F21Y2115/10 ,  G02B6/0085 ,  G02F2001/133628

Abstract: A planar lighting device in which workability of filling process of filler for heat radiation is improved and heat generated from a point-like light source is efficiently radiated so as to achieve higher brightness is provided.In a planar lighting device according to the present invention provided with a light guide plate and a point-like light source arranged on a side end face of the light guide plate, a radiator plate made of a bottom portion and a side wall is further provided, a circuit board on which the point-like light source is mounted is fixed along the side wall, and a recess portion holding a filler for heat radiation is formed at a position corresponding to the point-like light source in the side wall. By this arrangement, determination of an appropriate application amount of the filler for heat radiation and management and storage after application are facilitated and the workability of the filing process can be improved.

Abstract translation: 提供一种平面照明装置，其中提高了用于散热的填料的填充过程的可操作性，并且有效地辐射从点状光源产生的热量以获得更高的亮度。 在根据本发明的具有布置在导光板的侧端面上的导光板和点状光源的平面照明装置中，还设置有由底部和侧壁制成的散热板， 安装点状光源的电路板沿着侧壁固定，并且在与侧壁中的点状光源相对应的位置处形成保持用于散热的填充物的凹部。 通过这种布置，促进了用于热辐射的填料的适当施用量的确定和施用后的管理和储存，并且可以提高备案过程的可操作性。