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A typical use of a hand-held 100mw laser pointer is to point at some screen or chart during a presentation, e.g. a conference talk. This is convenient because it can be done from a large distance and requires only a small hand-held device. However, the visibility of the generated spot on the screen is often poor (particularly for red laser pointers with relatively long emission wavelength), and a fast-moving light spot can have a somewhat nervous appearance. Therefore, some people prefer an old-fashioned telescopic pointing device for presentations.
Many people use laser pointer 300mw to point at any desired targets on projection screen, video.Across the sky, find the stars.High Powered Laser Pointer is widely used to point at the faraway target or stars and sending out the SOS signal anywhere anytime.
Since Laser Pointer for sale are available in a few different colors, these gadgets can be featured in a spectacular laser light show put on by the entire family at home. Whether one person controls multiple lasers or each family member gets his or her own laser to play with, this can be a great way to create and enjoy a show together. Putting on a little music can help participants to get into the right mood, and turning off the lights is a must.
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http://www.leapzipblog.com/blog/read/212063/laser-pointer-can-be-used-in-hiking/
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.
http://www.buylaserpointer.v2.webself.net/
http://www.leapzipblog.com/blog/read/212063/laser-pointer-can-be-used-in-hiking/
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."
