How does the laser pointer realize an external power supply?
Existing technology At present, laser technology has been used in various related applications in medical, industrial and even military. The laser technology is used in people’s lives and can be seen for another purpose. It is used to point out the key points in teaching, lectures or conference presentations. Laser pointer. The basic components of the laser pointer are shown in FIG. 1, which includes a laser diode 11 connected to a power source 12, and a power switch 13 and a current limiting resistor 14 are connected between the two. How to make the laser pointer have a sufficient and stable power supply to reduce the use of batteries, to reduce the cost of the laser pointer, and to reduce the environmental pollution caused by waste batteries is a problem that needs to be overcome.
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The Laser pointer that can be connected to an external power supply can reduce battery usage, reduce the cost of laser pointer use, and reduce environmental protection problems caused by waste batteries. The laser pointer of the present invention can be connected to an external power supply, including: 1. Laser generator, an external power interface, a power switch, and a current-limiting resistor. The laser generator is used to generate a laser beam. The external power interface is used to connect with a power supply device, and the power supply device provides the power required by the laser generator. The power switch is connected between the laser generator and the external power supply interface, and when the user uses it, the power supply provided by the power supply device can be turned on to the laser generator. The current-limiting resistor is also connected between the laser generator and the external power interface to protect the laser generator to avoid damage caused by excessive current passing through the laser generator.
2021-10-07 12:16:28
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