Green Laser Green Where can I buy an affordable green laser pointer?
I was looking for a green laser pointer that could do cool stuff like: Pop a balloon or light a match.
I got mine in Taiwan for about $60 but I understand you can get the same thing in Mainland China for about $12. Mine died after about two weeks of very light use. Also, it claimed to be 100 mW which will easily pop balloons but I doubt it was more than 10 ~ 15 mW. I never tried it on a balloons but you could get a little smoke out of black electrical tape with it if you held it on it for about 15 seconds. I'm sure it would have popped balloons but would have been a little slow compared to what a real 100 mW would do.
I understand that these cheap ones over drive the diode trying to up the wattage rating. That's probably what burned mine out so fast. Also many of them rate the power based on broad band and radiate a lot into the IR band making them more dangerous and less efficient for popping balloons etc.
http://www.wickedlasers.com/lasers/Spyder_III_Pro-84-37.html has a lot of nice lasers on it with a 50 mW "Spyder III Pro" for $197.97. They go up from there to the 500 mW for $2,997.97. I don't know how good these are or if they would last longer than my cheap Taiwan one but I would hope so for this kind of money. The 100 mW is $297.97. You might try that one, I'm sure it would have no problem popping balloons. That web site has all sorts of cool laser products including more green ones plus blue ones.
Be very careful if you get one of these. It can be dangerous and it can get you arrested... please watch this video http://www.youtube.com/watch?v=EhDDesQgm6Y
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This Green Laser Pointer comes in our beautiful Black Matte finish. Green lasers has so many uses: * Astronomers * Teachers * Students * Bird Watchers * Presentations * Tour Guides * Construction Workers * Scientific * Military * Security applications * Forensics Investigations * Play with pets (Dogs and Cats LOVE chasing the laser dot) Use to point out distant points of interest Imagine a bright beam of light that is visible from up to 2 miles away! It has a Class IIIa rating, this is the most powerful green laser allowed within the law...
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The XRS 9945 provides total protection and peace of mind with Super-Xtreme Range Superheterodyne Technology, detecting all 15 radar/laser bands with its super-fast lock-on detection circuitry. The unit provides extra detection range and the best possible advance warning to even the fastest of POP mode radar guns...
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Astronomy Laser Pointers - Green Laser Pointers for Astronomy
High power green laser pointers are becoming more and more popular for use in astronomy. Whether you are star-gazing with your astronomy club buddies or conducting an astronomy lecture outdoors, there is nothing more frustrating than unsuccessfully trying to identifying a star or constellation in the sky. Before portable lasers were available, the only ways were to either point to it with your index finger or describe the approximate position verbally. With new technology comes new hope for astronomers worldwide! By using a high power laser pointer, it is now possible to aim a visible laser beam virtually touching the star or constellation you want to point out. The era of astronomy laser pointers is here.
Green Laser Pointers for Astronomy
Green laser pointers are considerably brighter than all other visible color lasers because the human eye is most sensitive to the color green. At the same output power, a green portable laser will appear much brighter than either a yellow, blue or red laser. When we speak of the term "astronomy laser pointer," it is most often associated with a green laser pointer.
Telescope Alignment with a Laser Pointer
Green laser pointers are not only useful for pointing out stars and constellations, it has other uses in astronomy as well. You can mount a green portable laser onto a telescope using its factory provided brackets (make sure to align the laser parallel to the telescope). If brackets are not available, you can just hold the laser down using your hands. A green laser pointer mounted on a telescope can make aligning the telescope to objects in the sky much faster and easier.
Power Output
Green laser pointers come in a variety of power output ranging from 1mW to 500mW. Which one is suitable for astronomy? More specifically, which is most suitable for your needs? What power output should you choose?
1) A 5mW green laser pointer has a bright laser end "spot". The actual laser beam is only faintly visible. These are more suitable for presentation purposes and not astronomy.
2) A 15mW - 75mW green laser pointers emit a bright laser beam making them a good choice for astronomy.
3) At 95mW - 150mW, the green beam is even brighter offering extreme brightness, visibility and distance.
4) As you increase in power output, the laser beam will become brighter and more solid in color. The best suggestions if you are looking for an astronomy laser is to purchase something you are comfortable with paying.
5) SKYlasers offers power adjustable lasers where you can adjust the power output between a high-power and low-power setting.
Warning
Do not point any laser pointer devices at any flying aircrafts in the sky; it is a very serious offense in most countries.
YouTube 動画をお気に入りに登録しました — Pointing a green laser at a cop
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