Unscrew the front head. Unscrew the lens base by a Scissors. Unscrew the lens Change the lens and reassemble. Adjust the focus spot well.
Like the most of consumers, you may have such doubts when purchasing laser pens. Is it good to choose red laser? Or green? What’s the difference between them? What are
Since the United States successfully developed the world’s first ruby laser in 1960 and China also successfully developed the first domestic ruby laser (born in Changchun Institute of Optics and
The laser pen can easily illuminate the wall and ceiling, leaving a bright “small spot”. But how far can it shine? Can you shine on the moon? Can we “illuminate”
How easy is it to attack AI models? A laser beam is enough! Recently, an expert from Ali Security published a new study that would make AI models no longer
Laser projector is a projector with red, blue and green lasers as the light source. Compared with the traditional projector, it has higher color expressiveness and picture hierarchy. It is
Can sensors see behind the corners of obstacles in real time? As it turns out, yes. A study by researchers at Stanford, Rice University, Princeton, and Southern Methodist University published in the journal Optica proposes
Many cat owners like to tease cats with laser pens. Both people and cat are very happy. However, when we tease the cat with a laser pen, we still need