公开(公告)号：US5973284A

公开(公告)日：1999-10-26

申请号：US90915

申请日：1998-06-05

申请人： Takuo Takenaka ,  Yasuchika Kudo

发明人： Takuo Takenaka ,  Yasuchika Kudo

IPC分类号： H01H13/36 ,  H01H11/00 ,  H01H13/12 ,  H01H13/14 ,  H01H13/52

CPC分类号： H01H13/12 ,  H01H13/14

摘要： A push-button switch for use in electronic devices is provided which reduces stress on contact parts. A C-shaped elastic member is secured at one end to a bottom wall of a switch casing and engages a movable member at its other end. The movable member in turn pivotably engages a contact member having movable elastic arms which abut non-conducting inclined surfaces on the bottom wall of the casing when the switch is open. To close the switch, a knob disposed slidably within the casing is depressed, bringing a bottom surface of the knob into engagement with an end of the movable member and deforming the C-shaped elastic member by bringing its ends closer together. Further, the contact member is caused to pivot about the movable member and move toward the bottom wall of the casing. Consequently, the movable elastic arms of the contact member slide off the inclined surfaces and into electrical contact with stationary contacts in the bottom wall of the switch casing to form a conductive path. The stresses incident to closing the switch are diffused by the C-shaped elastic member, reducing stress on the contact member and consequently reducing breakage of the contact member.

摘要翻译： 提供了用于电子设备的按钮开关，其减少了接触部件的压力。 C形弹性构件的一端固定在开关壳体的底壁上，并在其另一端与可动构件接合。 可动构件又可旋转地接合具有可动弹性臂的接触构件，当接通开放时，可动弹性臂抵靠壳体底壁上的非导电倾斜表面。 为了闭合开关，可滑动地设置在壳体内的旋钮被压下，使得旋钮的底表面与可移动部件的端部接合，并使C形弹性部件的端部靠近在一起使其变形。 此外，接触构件绕可动构件枢转并且朝向壳体的底壁移动。 因此，接触构件的可动弹性臂从倾斜表面滑出并与开关壳体的底壁中的固定触点电接触以形成导电路径。 闭合开关的应力由C形弹性构件扩散，减小了接触构件的应力，从而减小了接触构件的断裂。

公开(公告)号：US5077588A

公开(公告)日：1991-12-31

申请号：US589796

申请日：1990-09-28

申请人： Masato Yamada ,  Takuo Takenaka ,  Yukihiro Yamaguchi

发明人： Masato Yamada ,  Takuo Takenaka ,  Yukihiro Yamaguchi

IPC分类号： H01L33/00

CPC分类号： H01L33/0008 ,  H01L33/0025

摘要： A multiple wavelength light emitting device having a single p-n junction and at least two light emitting layers within a diffusion region of a minority carrier comprises a p-type Ga.sub.1-x1 Al.sub.x1 As layer, a p-type Ga.sub.1-x2 Al.sub.x2 As layer, a p-type Ga.sub.1-x3 Al.sub.x3 As layer, and an n-type Ga.sub.1-y Al.sub.y As layer, where x.sub.1, x.sub.2, x.sub.3 and Y represent aluminum arsenide mixed crystal ratios of the respective layers. The light emitting alyers, i.e., the p-type Ga.sub.1-x2 Al.sub.x2 As layer and the p-type Ga.sub.1-x3 Al.sub.x3 As layer each have a different band gap to emit an infrared light and a visible light, respectively. Since the infrared and ivsible lights are simultaneously emitted, emission of the infrared light can be confirmed or monitored by the visible light. The light emitting device of the present invention utilizes an energy well for trapping electrons and an energy barrier for preventing electrons from diffusing to improve the whole light emitting efficiency.