公开(公告)号：US09122032B2

公开(公告)日：2015-09-01

申请号：US14548284

申请日：2014-11-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Naoto Tada ,  Suguru Nakao ,  Shuji Yamashita ,  Hiromi Kanzawa ,  Kazuya Honda

IPC: G02B6/10 ,  G02B6/42 ,  G08C23/04 ,  H04N5/44 ,  H04N5/64 ,  H04N21/422

CPC classification number: G02B6/4295 ,  G02B6/10 ,  G02B6/42 ,  G02B6/4214 ,  G08C23/04 ,  H04N5/4403 ,  H04N5/64 ,  H04N21/42204

Abstract: A light receiving device has a light receiving section for receiving a remote control signal light beam, and a light guide section for guiding the light beam to the light receiving section. The light guide section has a first reflection surface for reflecting the light beam to the light receiving section, the first reflection surface being disposed to oppose obliquely at a sharp angle to an entrance plane, and a second reflection surface for guiding the remote control signal light beam, the second reflection surface being disposed between the entrance plane and the first reflection surface. The first reflection surface includes a circular arc curved surface curved outward in a part closer to the entrance plane and farther from the light receiving section, and a linear inclined surface in a part approaching the light receiving section from the curved surface.

Abstract translation: 光接收装置具有用于接收遥控信号光束的光接收部分和用于将光束引导到光接收部分的导光部分。 导光部具有用于将光束反射到受光部的第一反射面，第一反射面与入射面倾斜地倾斜地配置，第二反射面用于引导遥控信号光 所述第二反射面设置在所述入射面与所述第一反射面之间。 第一反射面包括在靠近入射面的部分向外弯曲的圆弧曲面，并且距离光接收部更远的圆弧曲面，以及从弯曲面接近光接收部的部分的直线倾斜面。