PPT page-turning pen is a new patented electronic product specially designed for computers and multimedia projectors, which has been widely used in developed countries such as Europe and America. There are mainly two kinds of PPT laser pens on the market, one is a simple laser pen and the other is a laser pen with remote control function. A simple laser pointer can be used directly without connecting to a computer. It can emit light beams of various colors, including red light, green light, blue light, blue-violet light and so on. When using a laser pen with remote control function, first insert the receiver into the USB port on the computer. Then open the PPT slide, and when showing the slide, press the up or down key on the laser pointer to flip the slide.
What should I pay attention to when using a laser pointer?
1. Laser is harmful to human eyes. Please keep away from children to avoid accidental injury. When using laser indoors or at close range, please wear laser goggles with corresponding wavelength. Avoid direct light beam to eyes.
2. Please don't light the laser continuously for too long (especially the green laser), and it is best not to exceed 30 seconds in summer. If you feel that the laser flashlight or pen body is hot, please stop using it immediately until it is completely cooled.
3. When used in winter, the green laser may need to be preheated for a period of time to reach the best brightness. You can heat it in your pocket and then put it in the battery for use. The continuous lighting time should not exceed 1 min. To prevent the laser from aging too fast or overheating and damaging the laser LD or module.
4. When using, make sure that the laser cannot be aimed at others or yourself. When using at close range, be careful not to aim at substances that are easy to ignite.
6. Don't lend the laser pointer to people who don't know the danger of laser. If you must borrow it, you should clearly inform the other party of the correct use and precautions.
7. Laser pens are dangerous, especially outdoor high-power lasers. The focal point after laser focusing has a certain cauterization, which will damage the physical properties.
8. Some high-power laser pens have obvious thermal effects and cannot be used continuously for a long time, especially for temperature-sensitive solid-state lasers.