The wireless Laser pointer can completely free you from the computer. The user does not have to stay at the computer all the time. When you are doing online learning, presentations and reports, you need to comment on key content, you only need to touch it with your hands. Press, the red laser dot can be mapped to the document content screen that you need to emphasize; every time you explain the key content or walk to the projection screen to "close contact" with them, you don't need to spend a lot of energy to "point and touch" with the audience ".
At the same time, you can turn the electronic manuscript to the function button you want to have a bright spot on the demo page, up and down, left and right, 360 degrees of freedom; no matter where you are in the classroom, lecture hall or meeting room, interact with the lecturer on site After that, just gently press the up and down buttons of the wireless page turning laser engraver, and the desired picture will automatically appear on the screen; you no longer need to sit in front of the podium and operate the computer permanently. At the same time, it saves Going back to the podium to change the pain of the page, it truly embodies the wireless click and gains unlimited excitement!
Because there is a laser diode that produces this wavelength, its structure is the simplest, basically just a diode that uses a battery as an energy source. The red laser pointer first appeared in the 1980s as a large and heavy device worth hundreds of dollars. It is very small and very cheap. In recent years, the wavelength of diode-pumped solid-state lasers is 671 nm. (DPSS) The red laser pointer has appeared. Although inexpensive diodes can be used to obtain this wavelength, DPSS technology can produce higher quality lasers with a narrower frequency band.
The wireless blue laser pointer is composed of a radio frequency remote control and a receiver (USB interface). The RF radio frequency remote control is embedded with a wireless RF radio frequency transmitter. When using, only need to insert the receiver into the USB interface of the computer host, without installing a driver. It can work normally, the user only needs to click the relevant function keys of the RF radio frequency remote control to operate the receiver. The transmitter does not have to be aimed at the receiver, which truly embodies wireless freedom.