公开(公告)号：US3876900A

公开(公告)日：1975-04-08

申请号：US36005973

申请日：1973-05-14

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： AMATSUKA YOSHIO ,  KONISHI KENICHI

IPC: G02B6/42 ,  G09F9/33 ,  H01L25/075 ,  H01L33/30 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62 ,  G02F1/28

CPC classification number: H01L25/0753 ,  G02B6/4202 ,  H01L33/483 ,  H01L33/58 ,  H01L33/60 ,  H01L2224/48091 ,  H01L2224/48471 ,  H01L2224/48479 ,  H01L2224/73265 ,  H01L2924/00014

Abstract: This invention relates to an electric light-emitting apparatus, wherein electric light-emitting diodes are secured on the flat bottoms of recesses, which are formed on an electrically conductive substrate. The light-emitting diodes are contained in light-conducting wafers of transparent resin embedded in the recesses respectively. Each wafer has an oblique smooth reflection plane for reflecting the light conducted from the light-emitting diodes. A mask with light-diffusing regions and having a roughened lower face is provided to cover all the abovementioned parts in such a manner that the light-diffusing regions receive light from the smooth reflection planes, respectively.