The laser pen can lightly illuminate walls and ceilings and leaves bright “small spots”. How far can it shine? Can it shine on the moon? Take the commonly used pen laser pen as an example. Its power is around five MW (0.005 w). At a distance of 100 meters, the laser light source looks like…
Day: September 8, 2021
If you have a laser pointer?
If you have a laser pointer, what would you use it for? The Laser pointer is a tool with many functions. It has a wide range of uses. And don’t think that there is only one simple type of laser pointer. There are many types of laser pointers. There are many different laser pointers according…
Is there any difference between ordinary semiconductors and laser semiconductors?
Of course, the laser pointer emits laser light. The wavelength of laser pointers on the market is generally in the range of visible light, such as red and green. Maybe your Laser pointer is red, but it may also have infrared components. Laser is a light source that is different from general light sources (such…
What function can the low-power green laser pointer achieve?
This practical new type has the advantages of simple structure, small volume, reliable characteristics, good beam quality and low productivity (about 1 MW). Crystal composition самоумножен The crystal coating treatment frequency of the crystal is doubled to stage octave frequency doubling. The crystal surface is coated with two transparent faces and promotes absorption light pump,…
What is the principle of a mobile phone with a laser pointer function?
Pairs of towers are installed.At one end of the laser rod described above, the cross section corresponding to the specified mobile interface is lighter at the other end.With cell phones, they can control the work with a laser pen; At the end of the support storage structure, there is a socket for inserting and storing…
Realization of light spot track recognition with laser pointer
The light point channel detection methods due to the constantly changing teaching environment and expanding scope, it to some extent affects the effectiveness of learning. It is therefore recommended to use different techniques in a large-scale teaching environment. The representation on the didactic screen differs from that of the existing technical literature. Entry methods are…
Smart laser pointers are gradually being used by the public
Laser pointers were manufactured in the 1960s. This use of powerful smoke to transfer to the substrate takes about 2-10 minutes, and the hexagonal nanowires can reach 2-10 microns. Nanowires with a diameter of 20 to 150 nm naturally form a laser cavity. The hexagonal cross-section nanowire sample at room temperature was pumped by the…
The manufacturing principle of the magic conversion laser pointer
A manufacturing method of an up-conversion laser pointer, which comprises: a front-end infrared up-conversion fluorescent glass lens (1), a middle infrared 980nm semiconductor laser (2), a metal heat pipe (3) for fixing them, and a 3V battery power supply (4) holder constitute. When the power is turned on, the semiconductor laser emits an invisible 980nm…
Controlling and processing technology of electronic multi-function laser pointer
The intelligent digital interactive flat electronic laser pen can actually perform the top-down startup function on the remote control computer. In an insulating shell, it is successively connected with a pen, an electronic induction handle coil, an electronic induction pen circuit and a feeder. On the other hand: a series of RF transmitters, laser transmitter…
Laser pointer with retractable function
In addition, for sales staff in certain shopping malls, lecturers at exhibitions, and teaching staff in classrooms, laser pointers are usually required. However, these personnel find it very inconvenient to carry both mobile phones and laser pointers at the same time. Therefore, these people need a device that has both communication and laser pointer or…