发明名称 |
Light guide sheet and movable contact assembly using the same |
摘要 |
A light guide sheet is adapted to be used with a light emitter. The light guide sheet includes a light-transmissive base, a light inlet section having bonded to a lower surface of the base, and an illumination section for diffusing the light entering into the base. The light inlet section has an upper surface and an edge surface connected to the upper surface. The upper surface of the light inlet section is bonded to the lower surface of the base. Light emitted from the light emitter enters into the edge surface the light inlet section. The light inlet section causes the entering light to enter into the base. The light inlet section has a refractive index lower than a refractive index of the base. The light guide sheet provides a movable contact assembly capable of reliably illumination inexpensively. |
申请公布号 |
US8337028(B2) |
申请公布日期 |
2012.12.25 |
申请号 |
US20100793861 |
申请日期 |
2010.06.04 |
申请人 |
TATEHATA NAOKI;CHIKAHISA YOUSUKE;PANASONIC CORPORATION |
发明人 |
TATEHATA NAOKI;CHIKAHISA YOUSUKE |
分类号 |
G01D11/28 |
主分类号 |
G01D11/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|