公开(公告)号：US07891829B2

公开(公告)日：2011-02-22

申请号：US12106215

申请日：2008-04-18

申请人： Toshisada Takeda ,  Satoshi Kawashima ,  Junji Yuasa ,  Yohei Ishii

发明人： Toshisada Takeda ,  Satoshi Kawashima ,  Junji Yuasa ,  Yohei Ishii

IPC分类号： F21V33/00

CPC分类号： H01H13/83 ,  G06F3/0202 ,  H01H13/88 ,  H01H2209/038 ,  H01H2219/044 ,  H01H2219/056 ,  H01H2219/062 ,  H01H2227/00 ,  H01H2229/00

摘要： A keyboard apparatus. The apparatus has a housing including a plurality of key pads, including at least twenty six key pads spatially disposed within the housing. Each of the key pads is depressible upon touch by a user. An optically transparent circuit board is coupled to a backside of each of the key pads. The apparatus has a light guide characterized by a planar optically transparent material having a surface region, a width, a length, and a backside region, and a thickness provided between the surface region and the backside region. The apparatus has a plurality of patterns disposed on the surface region and optically coupled respectively to each of the twenty six key members. In a specific embodiment, the apparatus has a light emitting diode provided within a center region of the surface region to emit electromagnetic radiation. The electromagnetic radiation propagates from the light emitting diode through a portion of the thickness of the light guide to one or more of the plurality of patterns to direct one or more portions of the electromagnetic radiation to respective key pads for lighting the respective key pads.

摘要翻译： 键盘装置。 该装置具有包括多个键盘的壳体，其包括空间上设置在壳体内的至少二十六个键盘。 每个键盘在使用者的触摸时都是可以压下的。 光学透明电路板耦合到每个键盘的背面。 该装置具有特征在于具有表面区域，宽度，长度和背面区域的平面光学透明材料以及设置在表面区域和背面区域之间的厚度的光导。 该装置具有设置在表面区域上并分别光耦合到二十六个关键构件中的每一个的多个图案。 在具体实施例中，该装置具有设置在表面区域的中心区域内以发射电磁辐射的发光二极管。 电磁辐射从发光二极管通过光导的厚度的一部分传播到多个图形中的一个或多个图案，以将电磁辐射的一个或多个部分引导到相应的键盘，以点亮相应的键盘。

公开(公告)号：US20090067153A1

公开(公告)日：2009-03-12

申请号：US12106215

申请日：2008-04-18

申请人： TOSHISADA TAKEDA ,  Satoshi Kawashima ,  Junji Yuasa ,  Yohei Ishii

发明人： TOSHISADA TAKEDA ,  Satoshi Kawashima ,  Junji Yuasa ,  Yohei Ishii

IPC分类号： F21V33/00 ,  H01H13/86 ,  B29D11/00

CPC分类号： H01H13/83 ,  G06F3/0202 ,  H01H13/88 ,  H01H2209/038 ,  H01H2219/044 ,  H01H2219/056 ,  H01H2219/062 ,  H01H2227/00 ,  H01H2229/00

摘要： A keyboard apparatus. The apparatus has a housing including a plurality of key pads, including at least twenty six key pads spatially disposed within the housing. Each of the key pads is depressible upon touch by a user. An optically transparent circuit board is coupled to a backside of each of the key pads. The apparatus has a light guide characterized by a planar optically transparent material having a surface region, a width, a length, and a backside region, and a thickness provided between the surface region and the backside region. The apparatus has a plurality of patterns disposed on the surface region and optically coupled respectively to each of the twenty six key members. In a specific embodiment, the apparatus has a light emitting diode provided within a center region of the surface region to emit electromagnetic radiation. The electromagnetic radiation propagates from the light emitting diode through a portion of the thickness of the light guide to one or more of the plurality of patterns to direct one or more portions of the electromagnetic radiation to respective key pads for lighting the respective key pads.

摘要翻译： 键盘装置。 该装置具有包括多个键盘的壳体，其包括空间上设置在壳体内的至少二十六个键盘。 每个键盘在使用者的触摸时都是可以压下的。 光学透明电路板耦合到每个键盘的背面。 该装置具有特征在于具有表面区域，宽度，长度和背面区域的平面光学透明材料以及设置在表面区域和背面区域之间的厚度的光导。 该装置具有设置在表面区域上并分别光耦合到二十六个关键构件中的每一个的多个图案。 在具体实施例中，该装置具有设置在表面区域的中心区域内以发射电磁辐射的发光二极管。 电磁辐射从发光二极管通过光导的厚度的一部分传播到多个图形中的一个或多个图案，以将电磁辐射的一个或多个部分引导到相应的键盘，以点亮相应的键盘。