How long has it been purchased? How much does it cost? If it takes a long time, such as a few months or more than half a year, it can be considered as normal light decay. If you just bought it for a few days, or didn't play it a few times, it may be ...

With the improvement of economic level and living conditions, laser pointer are slowly entering our lives. How to buy laser pointers has become a problem we care about. 1. Introduction of Laser Pointer The laser pointer refers to a transmitter desig ...

I just saw the video about this incredible thing, and there really is such a thing, by the way, I searched the Internet: 1. The laser pointer may overheat the drone battery. 2. The plastic of the drone may have melted. 3. The laser may interfere ...

In the cylinder, a total reflection mirror is placed on one end, and the other half mirror is placed on the other end. A high-intensity lamp rotates around the ruby ​​cylinder to provide a flash of white light that triggers the action of the las ...

Laser diodes are not as complicated as many types of consumer electronic devices. It is composed of laser pointer diode, circuit board, housing, optics and housing. Certain electronic components and laser diodes on circuit boards are made of semic ...

When the first working laser pointer came out in 1960, it was described as "searching for a solution to a problem." But before long, the unique quality of lasers (that is, the ability to produce a strong, very narrow single-wavelength beam) was us ...

Although Einstein did not invent the laser pointer, his work laid the foundation. Einstein pointed out that stimulated emission of radiation may occur together with spontaneous emission and absorption. He used photon mathematics to study the situa ...

This is an interesting question, often unanswerable. With the rapid development of aviation technology, satellite technology, and military technology worldwide, laser pointer technology, such as the development of daily lasers such as DVD players ...

Townes had predicted that the device’s radiation had extraordinary and useful properties: it would be at a single frequency, as pure as the notes from a tuning fork. That's it. The highly ordered nature of this radiation will make laser masers an ...

The laser pointer is a low-cost portable laser that can be carried around. It is designed to point out the area of ​​the slide or picture to be displayed during presentations, instead of holding wooden sticks or retractable metal pointers. It is ...