In the teaching process, multimedia teaching is becoming more and more common. The teachers almost stopped giving out signs. They all use Laser pointer for training. The laser is positioned to warn the students. However, there are too few laser Pointers available. Classes often have to bring many things, including laser Pointers, USB sticks and tape recorders to support the teaching. Multimedia page of laser pointer, including sending module and receiving module; Transmitting module, including laser generator, flip device, encoder and rf transmitter; The page turning device is connected to a radio transmitter through an encoder; Receiving module includes radio, decoder, SCM, USB driver, USB kernel and large memory capacity; The RF receiver is connected to the USB CPU through the decoder, MCU and USB drive in turn. Large capacity memory connected to USB central device; The transmitter module is realized through wireless communication. The transmitter of the transmitter is connected with the radio of the receiving module.

The utility model relates to an outward portable laser pencil, which comprises a pen tip, an external component, a light source and a power supply, a shell, an external assembly, a light source and a power supply in a spring, The high powered laser pointer tip has a rotating position and a coupling position of external connection and rotation; The external component is composed of two external components, which are used to connect the external component and the external component; The spring is composed of a translation part, a receiving part, a connecting part and a tail, and the receiving part is installed between the translation part and the connecting part, Connecting part and connecting tail; The light emitting part of the light source assembly must match the light emitting part that must be equipped with a heat sink, Enable it to transfer heat to the outside; The receiving part is provided with a first housing opening, the light source is in the first housing, the tail is provided with a second housing opening, and the power supply part is installed in the second housing, The output part has a light transmission law, and the light-emitting part of the light source radiates outward through the light transmission law.

The working principle of U disk laser pointer

When used, the Green laser pointer is charged first. When using, the teacher only needs to press 6 keys, the laser will emit laser, projected to the blackboard or projection screen, can be used as a teacher. Unscrew gamepad 2 from gamepad 5 and press button 1. The built-in flash drive 10 can be activated using the retractable gamepad 9. At this point, you can import projects from your computer. During class, you just connect it to the teaching computer and click record button 12. At this time, you can record with microphone 4 and multipurpose record the content of the class for study and use, thus really making it multifunctional and protecting the built-in flash drive 10 from damage.