公开(公告)号：EP2538426A1

公开(公告)日：2012-12-26

申请号：EP10846152.6

申请日：2010-10-28

申请人： Nippon Mektron Ltd.

发明人： UCHIDA Hitoshi ,  OHRUI Manabu ,  AKATSUKA Takahisa

IPC分类号： H01H13/02 ,  H01H13/702

CPC分类号： H01H9/00 ,  G02B6/0043 ,  G02B6/006 ,  G02B6/0065 ,  H01H13/023 ,  H01H13/83 ,  H01H13/88 ,  H01H2219/044 ,  H01H2219/046 ,  H01H2219/056 ,  H01H2219/06 ,  H01H2219/062 ,  H01H2229/02

摘要： In a switch module which is arranged in opposition to a key substrate, the switch module is provided which is able to reduce an amount of light leaking out from the vicinity of an edge portion of a light reflection member in the direction of key parts, so that the key parts can be illuminated in a uniform manner by the light which advances in the interior of a light guiding member. A switch module (1) is provided with a circuit substrate (6) that has a metal dome sheet (4) mounted on a surface thereof which is arranged in opposition to a key substrate (8), a light guiding sheet (4) that is arranged between the key substrate (8) and the circuit substrate (6), an LED (2), and a reflector (9) that makes the light emitted from the LED (2) incident into the light guiding sheet (3) from an end thereof, wherein key parts (7) are able to be illuminated by the switch module 1. At an inner side of the reflector (9) in the light guiding sheet (3), there is formed a printed pattern (12) of white ink for scattering light on an optical path of the light which transmits through a first surface (3b) from the vicinity of an edge portion of the reflector (9).

摘要翻译： 在与键基板相对配置的开关模块中，设置有能够减少从光反射构件的边缘部分附近向关键部件的方向泄漏的光量的开关模块，因此 可以通过在导光构件的内部前进的光以均匀的方式照亮关键部件。 开关模块（1）具有电路基板（6），该电路基板（6）具有安装在与基板（8）相对配置的表面上的金属圆顶片（4），导光板（4） 布置在键基板（8）和电路基板（6）之间，LED（2）和反射器（9），其使从LED（2）发射的光从入射到导光板（3）中的光 其端部，其中键部件（7）能够被开关模块1照明。在导光片（3）中的反射器（9）的内侧形成有印刷图案（12） 用于在从反射器（9）的边缘部分附近透过第一表面（3b）的光的光路上散射光的白色墨水。

公开(公告)号：EP2538425A1

公开(公告)日：2012-12-26

申请号：EP10846151.8

申请日：2010-10-28

申请人： Nippon Mektron Ltd.

发明人： OHRUI Manabu ,  AKATSUKA Takahisa ,  UCHIDA Hitoshi ,  OZAKI Kazuyuki

IPC分类号： H01H13/02 ,  F21S2/00 ,  H01H13/702 ,  F21Y101/02

CPC分类号： H01H13/83 ,  G02B6/0043 ,  G02B6/006 ,  H01H2219/044 ,  H01H2219/056 ,  H01H2219/06 ,  H01H2219/062

摘要： In a switch module which is arranged in opposition to a key substrate, the switch module is provided which is able to reduce an amount of light leaking out from the vicinity of an end of a light guiding member in the direction of key parts, so that the key parts can be illuminated in a uniform manner by the light which advances in the interior of the light guiding member. A switch module (1) is provided with a circuit substrate (6) that has a metal dome sheet (4) mounted on a surface thereof which is arranged in opposition to a key substrate (8), a light guiding sheet (4) that is arranged between the key substrate (8) and the circuit substrate (6), an LED (2), and a reflector (9) that makes the light emitted from the LED (2) incident into the light guiding sheet (3) from an end thereof, wherein key parts (7) are able to be illuminated by the switch module (1). The light guiding sheet (3) has a first surface (3b) that is arranged in opposition to the key substrate (8), and a second surface (3c) that is arranged at an opposite side of the first surface so as to be in opposition to the circuit substrate (6). In the vicinity of an end in the second surface (3c), there is formed a print pattern (12) by black ink on an optical path of the light which, after being reflected on the second surface (3c), transmits through the first surface (3b) in the vicinity of an end thereof, without being reflected on the first surface (3b).

摘要翻译： 在与按键基板相对配置的开关模块中，设置有开关模块，该开关模块能够减少从导光部件的端部附近向键部方向漏出的光量，因此， 可以通过在光导部件的内部前进的光以均匀的方式照亮关键部分。 本发明提供一种开关模块（1），该开关模块（1）具备：电路基板（6），其在与键基板（8）相对的面上安装有金属圆顶片（4）;导光片（4） 配置在键基板8和电路基板6之间，LED（2）以及使从LED（2）射出的光入射到导光片（3）内的反射器（9） 其一端能够通过开关模块（1）照亮钥匙部件（7）。 导光片（3）具有与键基板（8）相对配置的第一面（3b）和配置在第一面的相反侧的第二面（3c） 与电路基板（6）相对。 在第二表面（3c）中的一端的附近，在光的光路上由黑色墨水形成的印刷图案（12）在被第二表面（3c）反射之后透过第一表面 （3b）的端部附近，而不在第一表面（3b）上反射。