To conduct an informative presentation or lesson, you need a convenient appropriate tool. A laser pointer does this very well. You can find many high-quality models on Aliexpress. We've collected 14 of the best options.
| Photo | Name | Rating | Price | |
| #1 | Xin zhe shang mao laser pointers 007 | ⭐ 5 / 5 | Find out the price | |
| #2 | WL002 | ⭐ 4.9 / 5 | Find out the price | |
| #3 | GP-17 | ⭐ 4.8 / 5 | Find out the price | |
| #4 | Travel Trace JB013 | ⭐ 4.7 / 5 1 - voice | Find out the price | |
| #5 | Logitech R400 | ⭐ 4.6 / 5 | Find out the price | |
| #6 | Kinsmirat WJ0423A | ⭐ 4.5 / 5 | Find out the price | |
| #7 | YP Outdoor | ⭐ 4.4 / 5 | Find out the price | |
| #8 | Travel trace JB009 | ⭐ 4.3 / 5 | Find out the price | |
| #9 | Aenfor L7 | ⭐ 4.2 / 5 | Find out the price | |
| #10 | Robotsky Flashlights | ⭐ 4.1 / 5 | Find out the price | |
| #11 | AIBOULLY OUT2061 | ⭐ 4 / 5 | Find out the price | |
| #12 | Gouyu CWWH00070001 | ⭐ 3.9 / 5 | Find out the price | |
| #13 | Zacro ZHA0072 | ⭐ 3.8 / 5 | Find out the price | |
| #14 | HNGCHOIGE 6A30408 | ⭐ 3.7 / 5 | Find out the price |
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How to choose a device
Important parameters when choosing a model are: the color of the beam, as well as the ability to switch its pattern and the presence of additional diffuser attachments. The most common and cheapest lasers are red, with a power from 1 to 1000 mW and a wavelength of 650 nm. The power of green rays is from 5 to 800 mW, and the wavelength is 510-530 nm.
Low-power pointers (1-5 mW) pose a danger if the beam is directed into the eyes of people or animals for a sufficiently long time. Lasers with a power of 50 mW or more can damage the retina when the beam briefly enters the eye.
The most powerful are devices with a blue laser (1-5 W, 445 nm) - they even set fire to wood and can severely damage the eyes or skin not only with a direct hit, but also in the form of scattered radiation during short-term contact.
Before purchasing a pointer, you need to decide on its purpose. Tactical pointers cannot be used for playing with pets, and for complex presentations, special devices with the ability to connect to a computer via USB and remotely control slides are better suited.
Simple models sometimes have a power button that must be held constantly for the beam to glow. Such devices are cheaper, but they are less convenient.
Battery-charged pointers are more economical than battery-powered options, but they also cost more. If the device will be used rarely, then you should not purchase models with a battery - prolonged downtime is harmful for them.
External accessories that are indicated in the seller’s photo, for example, chargers or cases, are sometimes not included with the product - then they will need to be purchased for a separate fee.
US ground forces will receive the world's most powerful laser weapons
On the website of the Pentagon department engaged in researching investments in small businesses, information has appeared about promising weapons operating on new physical principles. The new weapon is called a tactical ultrashort pulse laser for military platforms. The US Army believes that such a laser can cause heavy damage to an unmanned aerial vehicle and “fry its electronic guts,” as the American publication Popular Mechanics writes about it.
Most military lasers are continuous wave lasers, or lasers that strike a target with a beam of energy over a period of time. Continuous-wave lasers effectively act as “blowtorches,” heating the surface of a target, such as an unmanned aerial vehicle, until a part melts, causing a failure in the vehicle’s control system and subsequent crash, or a fuel or fuel explosion. combat units of weapons loaded on UAVs.
At the same time, American observers see a number of problems in the implementation of this idea. As the article states, sometimes continuous wave lasers, often even in the kilowatt class, must focus on a single target point for several seconds to achieve the desired result.
However, ultrashort pulse lasers (Ultrashort Pulse Lasers, USPL) change the duration of impact on the enemy with power, producing a pulse of laser energy with a power of 1 terawatt and a duration of 200 femtoseconds (one terawatt is equal to one trillion watts, and one femtosecond is equivalent to one quadrillionth of a second).
The US Army says that unlike traditional lasers, USPL systems will be able to neutralize threats through three different mechanisms: physical destruction of the target; blinding sensors by generating broadband supercontinuum (coherent ultra-wide spectrum electromagnetic radiation) in the air and generating local electronic interference used to overload internal electronics.
The last method of neutralizing the threat is especially interesting, writes PM. An electromagnetic pulse (EMP) is generally considered a side effect of a nuclear weapon detonation, a process in which a nuclear bomb releases electromagnetic energy. The damaging effect of an electromagnetic pulse is caused by the occurrence of induced voltages and currents in various conductors. The effect of EMR manifests itself primarily in relation to electrical and radio-electronic equipment. The most vulnerable are communication, signaling and control lines.
But natural phenomena can also cause EMP. For example, this happened in the so-called Carrington Event of 1859. The Sun then produced an unusually large coronal mass ejection, releasing electromagnetic energy that set telegraph wires around the world on fire.
However, the EMP factor in the US Army laser is useful as it will help ensure the defeat of enemy unmanned aerial vehicles. Even if the laser does not burn through the UAV's structure to cause it to crash, or if the drone relies on sensors that cannot be blinded by the laser beam, the EMP can completely destroy the drone as an aircraft.
“Ultrashort (extremely short) pulse lasers, ultrashort pulse (USP) lasers, femtosecond lasers are optical quantum generators capable of generating laser pulses that contain a fairly small number of optical field oscillations,” explained the deputy director of the Center for Analysis of Strategies and technologies Konstantin Makienko.
According to the specialist, femtosecond laser systems have been known for a long time. It will be another matter if the US Ground Forces manage to increase the power level to the values that they claim.
Previously "Gazeta.Ru"
I have repeatedly written about the development of various types of laser weapons.
In particular, in accordance with the National Defense Authorization Act for Fiscal Year 2022, in the field of combat operations in land theaters, it is planned to develop a long-range precision fire system and integrated air and missile defense, including precision strike missiles, hypersonic missiles, and high-energy lasers.
However, in the development of laser weapons, not everything is going smoothly. A long-planned test of an airborne laser weapon aboard a US Air Force fighter jet has been delayed until 2023 due to technical issues and complications caused by the ongoing COVID-19 pandemic.
The first test of an airborne combat laser on board a fighter was planned for 2022, according to the Air Force Air Self-Defense High Energy Laser Demonstrator Program. However, it has now been shifted “to the right” by two years.
The creation of laser weapons is also progressing at a high pace in the US Navy. It is believed that the US Navy will receive a high-energy laser and integrated optical dazzler, as well as an associated reconnaissance system, as early as 2022.
In particular, HELIOS is a 60-kilowatt laser with the ability to increase its power to 150 kilowatts. The combat laser is being developed by Lockheed Martin, which is also equipping destroyers and guided missile cruisers (DDG) with the Aegis combat information and control system.” The laser will be fully integrated into the Aegis BIUS, as well as into the ship's power supply system.
That the Americans are planning to reach exactly this level of combat laser power - 150 kW - Gazeta.Ru
I wrote back in 2022.
Certain achievements have also been noted in the US Ground Forces. For example, in March 2022, a US Army Stryker armored combat vehicle equipped with a 5 kW mobile high-energy laser hit a small UAV at the Grafenwoehr training ground in Germany (Bavaria). Thus, the Americans demonstrated to their European allies how effective weapons based on new physical principles are.
Laser weapons, according to American experts, will protect Stryker armored personnel carriers during combat operations, on the march and when deployed at forward US bases. It is assumed that the lasers will be able to hit guided missiles, UAVs, mortar mines and cannon artillery shells of a potential enemy.
Laser weapons, according to US developers, allow minimizing the costs of hitting enemy targets. One laser shot is relatively inexpensive. And the alternative is a multimillion-dollar guided missile.
① 3 in 1 laser pointer with USB charging
Rating: 4.7 Price: 207.92 rub.
Go to the store This device in a well-made metal case is suitable for playing with pets and can also be used as a flashlight. The gadget is charged from a regular USB port, allowing you to save money on buying batteries. The laser beam has several options: classic dot, smiley, mouse, star and others. At the same time, while using it, you do not need to constantly hold the button. The ultraviolet light mode is useful for checking the authenticity of banknotes or searching for other marks that are not visible to the naked eye. One battery charge is enough for about a week of active play with pets.
Advantages:
- presence of 3 modes: regular flashlight, pointer, UV flashlight;
- in pointer mode there are 5 changing figures;
- built-in battery with USB charging;
- There is a charge indicator.
Flaws:
- Low quality UV flashlight.
Various figures
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Panasonic blue laser
The scope of application of semiconductor lasers is limited by their power. Such installations are indispensable in metal processing operations. Panasonic Corporation presented a new development of a super-powerful blue laser, created based on a combination of WBS (wavelength beam combining) and DDL (direct diodes).
In fact, it was possible to combine the highest power and precision. Producing a laser that operates in the 400-450 nanometer range with a 100-fold increase in the specific number of electrons requires much less electricity and expensive third-party materials.
At the same time, the quality of processing of metal edges with this installation is much higher. Panasonic's blue LED laser is in high demand in the automotive industry, especially for processing copper parts in engines and batteries.
② Laser pointer Ttravel trace JB013
Rating: 4.6 Price: from 673.47 rub.
up to
RUB 2,189.91
Go to the store This is a device with a powerful beam that is visible even in bright light. The gadget allows you to light sulfur matches, but is absolutely not suitable for playing with children or animals - the laser light can damage the retina. The ergonomic handle allows you to hold the device securely in your hands, and the metal body is resistant to mechanical stress. The pointer has a loop and an additional attachment for a belt or pocket. The beam scattering attachment allows you to get the effect of a starry sky (there are several modes). You can choose an option with red or green light, and also purchase additional lenses and a plastic case to store all the elements of the gadget.
Advantages:
- bright beam, supplied with diffuser attachment;
- high range, even in daytime;
- Powered by 18650 battery.
Flaws:
- the case is made of cheap plastic;
- not suitable for playing with pets.
Focus
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What is a laser pointer?
The principle of operation is simple. The LED radiation passes through specially selected lenses and is focused into the laser beam. This is what the human eye sees. Theoretically, the color of the beam can be any - after all, it depends on the color of the diode itself. However, as it turned out, certain colors of the spectrum are dangerous for humans. Therefore, today you can only find red, green and blue target designators on sale.
③ Baseus laser pointer with remote control for presentations
Rating: 4.9 Price: from 699.08 rub.
up to
RUB 1,412.48
Go to the store A presenter pointer with a USB transmitter that connects to a computer or laptop allows you not only to show the desired objects with a laser beam, but also to flip through presentation slides, and also change the sound volume. The device is useful for business negotiations or teaching. The pointer does not require additional driver installation and automatically synchronizes with the PC when a USB module is connected.
Advantages:
- light, fits nicely in the hand;
- well made;
- flips through slides, adjusts sound volume;
- laser range – 100 m.
Flaws:
- no joystick – cannot be used as a mouse cursor;
- AAA battery for power supply is not included.
Size
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④ Vector Optics SCBCR-11 Bullet Laser Pointer
Rating: 4.6 Price: 897.21 rub.
Go to the store A 9 mm brass bullet with a laser for cold zeroing of weapons allows you to adjust the sight without wasting ammunition and without wasting time going to the shooting range or training ground. The length of the device is 3 cm, weight is 30 g, power is more than 5 mW, wavelength is 650 nm. The bullet is suitable for any type of weapon of this caliber.
Advantages:
- conveniently placed in the chamber of a weapon;
- batteries included.
Flaws:
- not always easy to remove from the chamber.
In arms
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Japanese LFEX
The Laser for Fast Ignition Experiments (LFEX) was built by scientists at Osaka University. The length of the installation reaches 100 meters, its power is a thousand times greater than the entire electricity consumption on our planet (2 petawatts).
In this case, the impulse is generated in one trillionth of a second.
The scope of application of this complex optics has not yet been specified. It is only known that Osaka scientists are working on a new installation that exceeds the power of LFEX by 5 times - 10 petawatts.
⑤ Tencenta Wireless Presenter with Laser Pointer
Rating: 4.7 Price: 226.75 rub.
Go to the store The presentation remote control with a pointer is powered by a USB transmitter and has the same functionality as the model from Baseus presented above, but differs in design. The control buttons of the Tencenta gadget are located in one block, while its “competitor” has them in different parts of the body. Which device is easier to manage depends on the individual user.
The appearance of the pointer from both manufacturers is also different: Baseus has a laconic cylindrical shape, while Tencenta fits more comfortably in the hand, but looks like an old remote control and has a more bulky USB transmitter. The battery life of the gadget is about 50 hours.
Advantages:
- no delays when switching;
- does not require configuration;
- works on different OS.
Flaws:
- 2xAAA batteries for power supply are not included;
- weak beam.
Appearance
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Microwave weapons other than laser systems
LRAD deployed on USS Blue Ridge. Image credits: Tucker M. Yates/Wikimedia Commons
Compared to classical artillery, microwave weapons have many tactical advantages. For example, microwaves when fired from a weapon hit the target without being affected by external factors such as wind, weather, inertia, gravity, and so on. Additionally, enemy soldiers will not see or hear incoming microwave "shots" unless they have special microwave detection equipment. Moreover, microwave weapons only require a power supply and do not require any major logistics or ammunition supply during operations.
These are the main reasons why countries and defense companies spend billions of dollars to develop effective microwave weapons. However, these are not the only types of futuristic weapons being actively researched in the military field.
⑥ Laser pointer-pen with adjustable focus Kinsmirat Laser 303
Price: 968.02 rub.
Go to the store This powerful accessory with a green beam is powered by a battery. The device will be useful for tourists or travelers, but it cannot be used as a toy: the laser power is enough to set fire to a sulfur match, and if it gets into the eyes of a person or animal, it can lead to blindness. The security key allows you to block the gadget from accidental activation. Additionally, you can purchase a set with glasses from the same seller.
Advantages:
- laser range up to 5 km;
- Holds a charge for a long time, powered by 18650 battery.
Flaws:
- warms up;
- dangerous for pets.
Diffusion
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Other types of weapons of the future
Sonic and ultrasonic weapons
This weapon emits sound waves that can cause unbearable headaches, ear bleeding, hearing loss, fear, trembling, and even optical illusions caused by the vibration of the eyeballs. Sound guns used by police for crowd control during protests are also an example of a sonic weapon, they operate at a frequency similar to microwaves. Sound systems fall under the category of non-lethal weapons and are sometimes also called long-range acoustic devices (LRAD-Long Range Acoustic Device).
Plasma weapon
Much like Han Solo's blaster pistol, plasma weapons are capable of firing jets of plasma at enemies. In physics, plasma is the fourth state of matter, being a partially or fully ionized gas formed from neutral atoms (or molecules) and charged particles (ions and electrons). They are used to stun, burn, or warn a target, but like sonic weapons, they are also considered non-lethal weapons.
Plasma Acoustic Shield System
The plasma acoustic shield system (PASS - Plasma Acoustic Shield System), developed for the US Army by Stellar Photonics, is one such weapon system capable of firing plasma shock waves at a target and, depending on the radiation power, can operate in both lethal and non-lethal modes ).
Heat ray weapons
Directed-energy weapon (DEW) system, capable of increasing the temperature of a target's surface and destroying enemy electronic devices. It is designed to ensure the security of territories, protect ports and combat unrest. If a person is exposed to a heat ray weapon, they may feel a burning sensation and severe pain in the skin area.
The US military's Active Denial System (ADS) is a riot control weapon. Based on thermal radiation technology, it emits microwaves in the millimeter range with a frequency of 95 GHz and affects a person causing a state of shock. ADS has a range of up to 1000 meters and can be used in both defensive and offensive operations.
From planes that shoot lasers to plasma rifles without bullets and sonic cannons that cause vibrations, defense technology experts are working on many incredible microwave weapon ideas, but only time will tell which ones will become a reality.
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⑦ 5MW Liplasting Laser Pointer
Rating: 4.6 Price: from 18.83 rub.
up to
138.61 rub.
Go to the store Compact pen pointers with different laser colors and beam lengths (red - 500 m, green - 500-1000 m, purple (blue) - 10-100 m) are useful both for work and for playing with pets. The device is only 15 mm long, and thanks to its smooth metal body, it is pleasant to hold in your hands. The beam power of all pointers is 5 mW. The maximum glow time without interruption is one minute, after which you must turn off the gadget to avoid damage.
Advantages:
- bright beam;
- There is an option with a purple beam.
Flaws:
- There are no additional attachments or beam adjustments.
Different colors
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⑧ Keychain laser pointer-flashlight 2 in 1
Rating: 4.6 Price: from 64.79 rub.
up to
66.29 rub.
Go to store A small metal keychain with a key ring and a laser pointer can be used for playing with pets, and the built-in flashlight is useful in case of an unexpected power outage. There is a rubber plug between the batteries to prevent the device from turning on on its own during transportation. The seller offers five body colors to choose from.
Advantages:
- batteries included;
- small size;
- Good for playing with pets.
Flaws:
- To operate the laser or flashlight, you must constantly hold the button pressed.
- poor quality threads on the battery compartment cover.
Laser
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What opportunities does a powerful laser offer?
- Long distance alarm. A powerful laser can replace pyrotechnic signaling devices. It is especially effective in mountainous areas with good visibility from populated areas;
- Carrying out measurements over long distances. For example, a 10 W green laser pointer can measure the curvature of the earth's surface;
- Using a high-power laser as a light source for strobes and other entertainment devices. Optical attachments for dividing the beam, highlighting various figures and inscriptions are available in countless varieties. You can always find the most unexpected options in them;
- Laser shooting range with laser burning of balls. The device only works over a short distance;
- Laser fencing over long distances. Photo relays, homemade lidars, optical communication stations and other devices.
A powerful laser can illuminate clouds, which is an effective means of signaling. Under good circumstances, such a signal is even more noticeable than a flare. The devices operate high-power lasers in pulsed mode.
A separate direction is associated with the use of powerful laser decrees for engraving. Only the most powerful models over 10 W are suitable for this. Engraving is possible on soft materials, such as wood.
⑨ Logitech R400 Wireless Laser Pointer
Rating: 4.8 Price: from 705.86 rub.
up to
987.61 rub.
Go to the store A laser presenter pointer with a USB transmitter allows you to additionally adjust the volume and flip through presentation slides. The Logitech R400 transmitter is larger in size than the Baseus model, but the device has stable signal transmission and clear response. The pointer is pleasant to hold in your hands thanks to the soft-touch coating of the body, and the battery charge indicator allows you to assess the condition of the battery.
Advantages:
- excellent response, stable connection;
- presence of a USB interface;
- does not require configuration;
- Compatible with Windows and Mac OS.
Flaws:
- The case is different from the case in the description (they send a regular bag).
Various cases
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⑩ Tactical laser pointer
Rating: 4.8 Price: from 637.31 rub.
up to
RUB 1,074.99
Go to the store A compact but powerful pointer with a green beam weighs only 20 g and has a body 10 cm long. The device is made of metal, so it is not afraid of falling or mechanical damage, and waterproof gaskets on the threads protect the mechanism from liquid ingress. The relief in the central part of the handle helps to securely hold the pointer, and the kit includes additional diffuser attachments. The power of the beam allows it to shine over a very long distance, as well as quickly set fire to sulfur matches.
Advantages:
- compact;
- light;
- Case and charger included.
Flaws:
- not suitable for playing with animals;
- dangerous for the eyes.
Focus
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