PoWerpoint is widely used in education, lectures and conferences. In the presentation, the projection system mainly includes: projector, screen and Laser pointer. During the PPT presentation, the laser pointer acts as an eye-catching moving point, pointing the PPT at a distance, and has the function of reminding the audience to watch key information. In practical applications, the laser pointer can be used as follows: When the distance between the laser pointer and the screen is within a certain range, the light emitted by the laser pointer shines vertically on the screen. If the included Angle of the laser pointer and the screen deviates from the vertical Angle, the laser pointer on the screen projection formed by the larger the diameter of the spot, the darker the brightness; The larger the distance between the laser pointer and the screen, the larger the diameter and dimmer the spot formed by the laser pointer casting light on the screen. Therefore, when the Angle between the laser pointer and the screen is at certain extreme angles or the distance between the laser pointer and the screen is far, the light projected onto the laser pointer on the screen will form a larger spot and lower brightness, which will reduce the guiding effect of the laser pointer.
When projection system provides a laser designator, can adjust the emitted light is used, the actual location of the laser pointer relative to the display surface of the screen position detection device and detected detected and actual position information is sent to control device, control device based on the above stated to receive the actual location of the information and comparing preset standard scope of location information. When the actual position information exceeds the range of standard position information, the light emitted by the adjusting laser pointer is projected on the display surface of the screen to form the diameter and position the luminance corresponding to the diameter at the preset threshold and the luminance threshold point.
If you are more proficient in technology, you can separate the laser pen and repair it yourself. I do not recommend doing this without safety glasses to prevent the laser pen from entering your eyes when you look at the laser pen. I think the first laser pen that should be mentioned for your cat is the 1MW version. If you are busy or don't want to spend time playing with your cat, this is a good choice for the automatic laser pen you can use. If you want to know how it works, check out this video on using a laser pen. It is not illegal or wrong to carry a laser pen on the aircraft. Many people think this will be a problem because there is a lot of controversy around the laser pen for aircraft. However, this does not mean that the product itself is illegal or essentially wrong, but only for those who control the equipment!