1. Technical Field
The present disclosure relates to a computer mouse.
2. Description of Related Art
Sometimes a person may need to use a computer in a dark environment. In such conditions, it is difficult to see and use a keyboard.
Many aspects of the embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
The disclosure, including the accompanying drawings, is illustrated by way of examples and not by way of limitation. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.
Referring to
The power supply 20 (such as a battery), the control module 30, and the lighting module 40 are mounted in the body 90. The power supply 20 is connected to and powers the control module 30 and the lighting module 40. The control module 30 controls the mouse to work as an ordinary mouse.
Referring to
The lighting control unit 50 includes a double throw switch S. The double throw switch S includes a pole pin1, and two throws pin2 and pin3. The pole pin1 is selectively connected to the throw pin2 or the throw pin 3 to turn on the first diode D1 or the second diode D2. The lighting control unit 50 is mounted on the front and right side of the body 90.
The over-current protection unit 60 includes four resistors R1, R2, R3, and R4. The resistor R1 is a voltage divider to protect the first diode D1. The resistor R2 is a voltage divider to protect the second diode D2. The resistor R3 is to protect the first diode D1 from over-current. The resistor R4 is to protect the second diode D2 from over-current.
The pole pin1 is grounded. The throw pin2 is connected to a cathode of the first diode D1. An anode of the first diode D1 is connected to the power supply 20 through the resistor R1. The throw pin3 is connected to a cathode of the second diode D2. An anode of the second diode D2 is connected to the power supply 20 through the resistor R2. The throw pin2 is further connected to the power supply 20 through the resistor R3. The throw pin3 is further connected to the power supply 20 through the resistor R4.
When the pole pin1 is connected to the throw pin2, the power supply 20 outputs power to the resistors R3 and R1. As a result, the first diode D1 is turned on. When the pole pin1 is connected to the throw pin3, the power supply 20 outputs power to the resistors R4 and R2. As a result, the second diode D2 is turned on.
The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of everything above. The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others of ordinary skill in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those of ordinary skills in the art to which the present disclosure pertains without departing from its spirit and scope. Accordingly, the scope of the present disclosure is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein.
Number | Date | Country | Kind |
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201110023791.6 | Jan 2011 | CN | national |