Automatic procedure laser pointer|download
Have you seen a laser pointer that can display a light spot on the large LED screen? (The big coffees who often speak at the conference must have this kind of demand) Have you seen a laser pointer that can vibrate and remind the time at the specified time? This feature is extremely useful for all speakers, allowing you to stop without looking at the time. A multifunctional pen-type mobile phone with a laser pointer, the shell of which is a slender rod-like shape; there is a light guide sheet on the shell, and a laser pointer is downloaded on the printed circuit board in the shell, which corresponds to the laser light guide sheet The laser pen is connected to the output end of the Laser pointer drive circuit; the laser pen drive circuit is connected to the I/O output end of the microprocessor of the pen mobile phone; the microprocessor is also connected to the keyboard circuit; the operation of the laser pen is through The buttons and the laser pointer in the microprocessor are driven by the process control.
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The laser pointer sold by the trader Tang Ren was found to have a power exceeding its specified rating. The output marked "<5mW" measured close to 100 mW in one case. It was also found that the radiation spectrum contains a significant infrared contribution (up to 40% in one case), which is invisible but also optically destructive. The labeling was also found to be incorrect, as these lasers clearly belong to Class 3B. This incident emphasized the advice of avoiding the use of cheap Internet providers when purchasing laser equipment or any safety-related equipment. Those who need to download the laser pointer as a research or presentation tool should be extra careful. In the absence of alternative technologies, laser pen can only be purchased from reputable UK suppliers, and the lack of safety signs, quality or clarity should be considered suspicious. In addition, the cheaper the product, the greater the possibility of non-conformity or non-compliance, so please spend the necessary money to ensure the safety of you and those around you.
2021-09-18 06:21:40
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