| 发明名称 |
SWITCH AND KEYBOARD PROVIDED THEREWITH |
| 摘要 |
There is provided a switch having a wide, uniform luminance region. In the switch, light emitted from a light source is output through an outgoing surface located in an upper end surface of a light guide, the light being incident from an incident surface located in a lower end surface of the light guide arranged above the light source. A concave lens is formed in the incident surface of the light guide, and a microlens array is formed in the outgoing surface of the light guide. |
| 申请公布号 |
US2015043192(A1) |
申请公布日期 |
2015.02.12 |
| 申请号 |
US201414333816 |
申请日期 |
2014.07.17 |
| 申请人 |
OMRON Corporation |
发明人 |
Tanoue Yasuhiro;Naka Mamiko;Izawa Kazuhira;SHINOHARA Masayuki |
| 分类号 |
H01H13/83 |
主分类号 |
H01H13/83 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A switch comprising:
a light guide, wherein light emitted from a light source is output through an outgoing surface located in an upper end surface of the light guide, the light being incident from an incident surface located in a lower end surface of the light guide arranged above the light source, and a concave lens is formed in the incident surface of the light guide, and a microlens array structure is formed into the outgoing surface of the light guide. |
| 地址 |
Kyoto-Shi JP |
