The laser pointer is a good assistant for teachers, trainers, experts, scholars, professors, speakers and mobile business people, and it is also a good business gift electronic gift. Laser pointers can be widely used in schools, research institutes, government agencies, intelligence-intensive enterprises, training centers, hospitals, hotels, exhibitions, bidding, business exchanges, etc.; at the same time, wireless laser pointers are also necessary accessories for projectors and laptops . However, the current laser pointer has a single function, which can only be used for instructions and page up and down of presentations. It does not have "intelligent interaction" functions, such as cooperating with computer software to expand the use of laser pointers. Combining with more current occasions to use teaching instructions is more conducive for the speaker to explain the presentation content to the participants at a close distance, so more close teaching instructions are also widely used. However, the current laser pointer cannot be used in combination with teaching instructions, which greatly reduces user experience satisfaction.
As a new type of light source, laser engraver is favored in the high-end market due to its advantages such as good directionality, low attenuation, and visual sensitivity; laser pointer is a product of the laser product market segmentation, which can be used in teaching, surveying and mapping, entertainment, etc. On the one hand, the single-function laser pointer products currently on the market can no longer meet the growing demand for laser pointer products, and are gradually being replaced by multi-functional and more advantageous products; therefore, some manufacturers have used the original laser single-point instructions On the basis of the laser pointer product, a laser grating structure is added. The single-point laser can be differentiated into multiple spots or patterns after passing through the grating mechanism, and the pattern can be rotated and changed by manually rotating the grating structure. It is generally called in the market It is the starry star laser pointer; this product greatly increases the function and entertainment of the blue laser pointer, but manual adjustment is more cumbersome, and the pause during the rotation also greatly affects people's visual experience.
Buy a suitable flashlight, a small pen-shaped flashlight is also acceptable, but the size should not be too small, and the most important thing is that the light bulb (preferably a single light bulb) can be completely removed, so as to facilitate the transformation. Flashlights are sold in major supermarkets, and the price ranges from 20 yuan to several hundred yuan. Buy the cheapest one as required. Of course, don’t forget to buy a few batteries of the corresponding specifications.