[PR]上記の広告は3ヶ月以上新規記事投稿のないブログに表示されています。新しい記事を書く事で広告が消えます。
You may need a Blue Laser Pointer 10000mw, violet or UV laser for this to be really effective though – red and green laser 2000mw don't work so well. In this case, the technique has been been combined with an Arduino that reads tweets!
Most consumer uses -- other than killing aquarium growths -- don't need more than 5 milliwatts (the traditional U.S. maximum for lasers sold as pointers). So why do some people buy handheld lasers that are 25, 100, or
laser pointer 200mw?
One reason is that there are laser enthusiasts who enjoy experimenting with lasers. They can create homemade Green Star Laser Pointer 10mWshows, they can do experiments involving burning or engraving materials, or they may like popping balloons or popcorn kernels with light. A New York Times article quotes an 18-year-old enthusiast as saying, "You learn so much in a hobby like this: electronics, soldering, physics. And you learn about light, you learn about optics. You also learn a lot of mechanical things."
Combine a laser tripwire with multiple trip points, multiple lasers, lots of mirrors, and you'll have one of the coolest Halloween haunted houses in the neighbourhood. A smoke machine is essential, as is keeping all those mirrors in alignment.
https://www.anonyme.com/View/bd29b738-f635-4725-aebc-e6087c1bafe7
People often go to theLaser Pen Shops to buy laser pointer, but ignore their safety.
For star pointing, green is best. The human eye sees green much better than the same amount of red or blue, so a 5mW green laser appears to be 5 to 10 times brighter than a 5mW red laser.Looking at a green beam in the sky should not adversely affect night vision. To keep your night vision, avoid looking directly at the laser dot on a nearby or light-colored surface.
20mW Green laser Pointer are used as cat toys, sights for firearms, tools for optics experiments, to play with, and for presentations. They have frequently been used to pull pranks, some of them dangerous. When shined in the eyes, they can temporarily impair vision, cause the person to see spots, and in rare cases, even damage the retina. Some people have shined them into the eyes of airplane pilots, truck drivers, musicians, and others appearing onstage, causing problems with their vision. For this reason, health agencies have issued strong warnings against the use of laser pointers for mischievous purposes, and these devices are often forbidden from concert halls and sporting events. It is illegal to shine a 50mw Laser Pointer Pen at a police officer, for example.
There are at least two potential consumer uses for laser pointer 3000mw outdoors:
Pointing out stars in the sky: This needs to be done with caution It is an application that requires relatively strong lasers, so that viewers can see the beam shaft (not just the end dot) Further, the beam is aimed at glowing objects. in the sky. Because these glowing, point-like objects could be aircraft, outdoor laser users need to be careful.
Dispersing birds: does not recommend that ordinary consumers use lasers to scare away unwanted birds The right type of laser with a wide, low-powered beam is not available so there are too many potential safety problems for the birds, for the laser user,. . and for bystanders Also, there is a chance of accidentally having the beam be on or near an aircraft.this is illegal in many countries and jurisdictions Finally, some species of birds may be only temporarily repelled by lasers; after a few minutes or within a day, studies indicate they will return.
Some nations have worked on superpowered laser pointers as antipersonnel weapons, but a U.N. resolution adopted in 1996 forbids their use in warfare. These lasers, not always above the blinding threshold, are often referred to as "dazzlers."
Bright Light Hazard
At around 150 milliwatts, the beam from a High power green laser pointers can be felt on the skin, depending on the beam focus, skin color (absorption), etc. At roughly 500 milliwatts, the laser's beam begins to be a skin burn hazard if the person is within a few meters of the beam.
Incidentally, even powerful industrial Laser Pointer cannot cause deep burns, severed limbs, gun-type injuries or other effects seen in science fiction movies. While multi-watt laser beams are definitely serious eye hazards, they are ineffective at causing incapacitating body injuries.
A power of 50 milliwatts is probably the maximum needed power for almost any laser pointing use.
For seeing the laser "dot" on a wall or surface indoors or in dim light, 5 milliwatts of green is fine. The most demanding general-use pointing application is for pointing out stars (NOT airplanes!!), when it is necessary to see the beam in mid-air. It takes more power to see the beam than the dot. For this use 5-25 mW should be fine, with a maximum of 50 mW for use in a large group with clear air (few particulates) in an urban environment.
If you like to pop balloons, ignite matches, or put the 50mw Green Laser Pointer Pen through textured glass for a private light show in your home, you may want a more powerful laser. But this is no longer a POINTER application.
Fortunately, wearing laser safety glasses or goggles can protect the eyes from the risks that lasers pose. The U.S Occupational Safety and Health Administration require staff to wear laser safety glasses or goggles when operating or around lasers that are Class 3b and Class 4. Class 3b lasers are lasers that powered from 5 to 500 milliwatts and Class 4 laser pointer 3000mw have output powers of more than 500 milliwatts. These laser safety glasses and goggles provide protection from reflected laser light and direct beam exposure. Laser safety eyewear is available for different wavelength ranges and for specific types of lasers. It is recommended that you find out the class of the laser you are working with as well as the appropriate wavelength range to ensure the best possible protection.
We can't emphasize enough how important it is to protect your eyes and yourself from the harmful effects of laser radiation. Remember, the damage done to the eyes from laser radiation exposure can be permanent!
Laser Pointer are used in robotics, for example, for laser guidance to direct the robot to a goal position by means of a laser beam, i.e. showing goal positions to the robot optically instead of communicating them numerically. This intuitive interface simplifies directing the robot while visual feedback improves the positioning accuracy and allows for implicit localization.
Leisure and entertainment
Entertainment is one of the other applications that have been found for lasers. The most common use of lasers in entertainment can be seen in special effects used in laser shows. Clubs, parties and outdoor concerts all use high-power lasers, with safety precautions, as a spectacle. Laser shows are often extravagant, using lenses, mirrors and smoke.
Ultra Powerful Laser Pointer can be used in hiking or outdoor activities. Higher-powered laser pointers are bright enough to scare away large wild animals which makes them useful for hiking and camping.[citation needed] In these circumstances a laser pointer can also serve as a handy survival tool, as it can be used as a rescue signal in emergencies which is visible to aircraft and other parties, during both day and night conditions, at extreme distances. For example, during the night in August 2010 two men and a boy were rescued from marshland after their red laser pen was spotted by rescue teams.
Weapons systems
Accurately aligned Blue Violet Laser Pointer are used as laser gunsights to aim a firearm.Some militaries use lasers to mark targets at night for aircraft. This is done to ensure that "friendly" and "enemy" targets are not mistaken. A friendly target may wear an IR emitting device that is only visible to those utilizing night vision (such as pilots.) To pinpoint the exact location of an enemy combatant, they would simply illuminate the target with a laser beam detectable by the attacking aircraft. This can be one of the most accurate ways of marking targets.
Lasers Help Identify the Origins of Emeralds
Researchers have recently demonstrated how laser-excited photoluminescence of emeralds can determine their structural properties as well as their place of origin. The study, first published in The Journal of Gemology, aims to provide a clear methodology to gemologists on how to determine whether an emerald is natural or synthesized, as well as establish a natural emeralds' geological origin. Laserglow's LRS 532nm laser was used as an excitation source.
Laser-Assisted Surgery Tool Delivers Large Particles into 100,000 cells per min
Researchers at the University of California, Los Angeles (UCLA) have developed a Biophotonic 50mw Green Laser Pointer Pen -Assisted Surgery Tool (BLAST) that can deliver nanoparticles, enzymes, antibodies, bacteria and other large particles into mammalian cells at 100,000 cells per minute. The delivery of such a large number of particles can help researchers understand the response of cells to external pathogens, the progression of diseases and the cell's defense mechanism against mutant mitochondrial DNA.
The BLAST system generates an array of bubbles that explode in response to laser pulsing. This causes microscopic fissures to appear on adjacent cell membranes through which particles may be delivered.
It uses high-quality aircraft aluminum material, army regulations three hard oxidation titanium alloy surface treatment. The role of non-slip, feel good. Like the lotus head design, multi-layer defense role. Up to 850 lumen, 900m strong and weak flash third gear can be controlled. Portable laser flashlight function, long-range 10,000 meters. Lighting + laser 2in1. Use 26650 large capacity rechargeable battery, high-capacity battery can be used 10 hours.Green led laser flashlight can point very far away, easy to use, super powerful LED flashlight laser, at the construction site, high-brightness LED laser flashlight is very bright.