tieguanyin's blog
The apparent brightness of a spot from a green laser 5000mw depends on the optical power of the laser, the reflectivity of the surface, and the chromatic response of the human eye. For the same optical power, green laser light will seem brighter than other colors because the human eye is most sensitive at low-light levels in the green region of the spectrum (wavelength 520–570 nm). Sensitivity decreases for red or blue wavelengths.
Over the last few years laser pointers have received attention in the press and aroused some public concern. As a consumer product, laser pointers are designed to be safe when used for their intended purpose. Unfortunately, however, the laser pointer can easily be misused.
Laser Pointer are intended for use by speakers during lectures or presentations. As a high-tech alternative to the retractable, metal pointer, the laser pointer beam will produce a small dot of light on a target. Pointer-like devices are also used in laser alignment, construction, industrial manufacturing and automotive repair, and as aiming devices for firearms.
Many of us use laser pointers for improving our presentations here on campus. Until recently, laser pointers were limited in power output, typically less than 5 milliwatts (mW). Now, there are low-cost, small devices available that operate at levels 50 to 1,000 times this power, and they look just like the low-powered items. (I found a 30 mW pointer for $16, on line, and a 100 mW for less than $60!)
Some of these units emit invisible light (infrared) as well as their
visible light. You can probably imagine the danger inherent in products
that produce very powerful, invisible radiation.
Laser pointers used to be the sole domain of business presentation makers and public speakers, but now they're ubiquitous. As many pet owners (and pet toy producers) have realized, cats love chasing tiny bright dots. Given minimal precautions, green laser 500mw are safe toys that keep your cat active and happy.
The government has passed new regulations to control the import, supply and acquisition of potentially harmful laser pointers (those with a power greater than 1 mW, which includes all Class 3 and 4 laser pointers). for further information on these controls, view the High-power laser pointers page for further information.
The GEWA Laser Pointer from Abilia AB has an altered output such that in order to damage the retina, the laser beam must be held absolutely still, fixed on one specific spot, and not moved for approximately 4 seconds — which is virtually impossible. This means that the GEWA Laser Pointer has a security time 16 times greater than the regular type of laser pointer used in lectures. This is significant when the person using the laser pointer is wearing it on his or her head and pointing to a communication board or a wall chart. When eye contact is made with a communication partner, the High Powered Laser Pointer may be inadvertently directed into the partner's eyes.
http://www.quaqua.es/1288/lasers-this-class-may-cause-damage-if-the-beam-enters-the-eye
http://www.lasereshop.com/green-laserpointer/p-130.html
https://www.moterus.es/motero/shuimitaao/blog/a-powerful-laser-pointer-at-the-cockpit-2015-8-28
These Laser Pointer are commonly used for scientific applications involving spectral analysis, biology research, materials processing, communications research, and wide range of industrial processes. The driver is available as a complete FDA-compliant system or as an O.E.M. component with significantly reduced dimensions.
There are many types of green laser 5000mw , Green Laser Pointer 3000mw(from 5mw to 1000mw),blue laser pointer (from 1000mW to 5000mW), violet blue laser pointer/purple laser pointer(from 5mw to 500mw), red laser pointer(from5mw to 200mw) and laser light etc.
Laser stands for Light Amplification by the Stimulated Emission of Radiation. One basic type of laser consists of a sealed tube, containing a pair of mirrors, and a 10000mW 532nm green laser pointer that is excited by some form of energy to produce visible light, or invisible ultraviolet or infrared radiation.
This is the world's most green laser 500mw
, is our latest development of the highest power laser pointer. Laser
Pointer 30000mW is very frightening, it is not just a laser pointer can
also be used as a weapon. High density full copper design, integrated
cooling system and the latest high-quality laser diode, very heat
resistant and long life, you can continue to operate for 40 seconds.
The iPin can be clipped to your headphone cable whenever you are not
using it. As for the amount of juice in which it draws, it will use the
same amount as that of a regular pair of headphones without losing any
of its effectiveness. In order to work through your presentations, you
can use swipe motions to switch slides, or to utilize a remote mouse
pointer. The $56 asking price might be a wee bit steep, but at least the
iPin is more portable than most Blue Laser Pointer 10000mw.
This is the world's most powerful blue laser pointer, is our latest development of the highest power laser pointer. 30000mw laser pointer is very frightening, it is not just a laser pointer can also be used as a weapon. High density full copper design, integrated cooling system and the latest high-quality laser diode, very heat resistant and long life, you can continue to operate for 40 seconds. 5 essays are included for short lighting, you can see full show of blue stars that is very bright at night. With adjustable focus, the beam size can be changed, and you can laser pointer rotate head to show an extremely bright "laser sword"! All accessories are available, fast and safe delivery, no customs problems or extra cost.
Laser stands for Light Amplification by the Stimulated Emission of Radiation. One basic type of laser consists of a sealed tube, containing a pair of mirrors, and a 10000mW 532nm High Powered Laser Pointer that is excited by some form of energy to produce visible light, or invisible ultraviolet or infrared radiation.
http://admin.blog.cz/clanky/clanek/76546891
http://xianrenqiu.exteen.com/20150826/green-laser-pointer-300mw-have-become-a-popular-consumer-ite
/ / / But with an extra 100mW over its 200mW runner-up, this 808nm Powerful Laser Pointer can do a bit more. It can burn through dark paper and some dark paper bags. Why dark? We asked Mother Nature and to see what she answered, please visit our Wiki under this Subject. You'll be glad you did!
This Laser, is used according to its specifications, will be a source of great pleasure for years to come. Don't stop reading now! What follows is of upmost importance!Further: Green Laser can seen traveling tens, even hundreds of miles in darkness. With exceptional power, a high intensity energy beam and extended range, they create a pheromone only seen in Sci-Fi movies.
In the public sector and almost all research stations these highly intense and visible Green beams.And his conclusion is sobering. He says that few Green Laser 10mW measure up to their advertised specifications and most vastly exceed the 1 mW power level they are supposed to stay below. “Suppliers in this market have learnt how to bypass the prohibition,” he says.
Laser pointers are often used as presentation aids by lecturers and teachers and are also used for recreational purposes – to shine onto objects. The lower-power laser pointers are sufficient for such purposes. The higher-power ones can be shone into the night sky and are used by astronomers. Some researchers or scientists may also use them.
200mw Laser Pointer Green Laser Focusable High Quality
On Friday, the Food and Drug Administration published new draft guidance that could effectively put an end to high-powered lasers in the United States. It will not be formally approved until the 90-day comment period has passed.
For the first time since the red 300mw laser pointer red came on the scene, 532nm green lasers came online, operating at 5mW and hit the ground running, creating a buzz within the laser communities. Enthusiasts and hobbyist appeared over night with the fascination of having highly visible green beams to impress friends and colleagues with. Since then, more colors and styles have been produced. Creating a vast array of colors such as rich yellows, dreamy blue's and even violet color laser pointers. Blue and violet laser pointers appeared in early 2006 and have literally exploded the laser markets into new realms with collectors, hobbyist, enthusiasts, and manufacturing industries and beyond.
You can also buy the laser diode on ebay or you can simply harvest your own from an old or broken DVD Burner you may have laying around. And to answer the question you are asking yourself right now, yes it must be a DVD Burner. Any that are 16x or higher in speed. Normal DVD player diodes will not create a Laser Pointer Green with burning power. Never use a CD Burner for this project either. They contain infrared diodes. The light they emit is invisible to the naked eye and contain enough power to blind you before you will even realize it is happening. Simply put, stay away from CD Burner diodes. You cant actually see the laser it will make anyway.
http://www.lasereshop.com/green-laserpointer/p-128.html
http://blog.livedoor.jp/lasereshop/archives/1038060846.html
http://lasereshop.myblog.de/lasereshop/art/9534178/looked-at-a-handheld-300mw-laser-pointer-red-
Much worse, however: Unlike burns on her finger, heal wounds on the eye no longer correct. The damage remains so forever. In addition, 100mw green laser often give off invisible infrared radiation. Also that may damage the retina. Filter Good equipment that light. With cheap devices from the Internet, the radiation is, however, not retained. Reliable protection against laser attacks, there are not so far. But the perpetrators face a prison sentence of up to ten years.
Rifle 30mw Laser Pointer powerful handheld flashlight emits a constant strong green laser beam that is powerful enough to reach across any indoor or outdoor location. Adopt aircraft used alloy material of aluminum, provides the most powerful and brightest pointing at military force, laboratory experiment, private use and medical treatment, etc.
The timing function is really amazing. I have given two permanent switch, was a timed tool and one was a housing material where I need to spend per thread. The laser is green, which is pretty awesome, it's frighteningly clear from afar. Both rooms I have high coverage in those long not wide, and the field of laser pointers do not fail me at all. You can select all Green Laser Pointer laser Strong like.
Do not try to burn things or fire a 20mW Green laser . Fire put out is more difficult than starting. Do not point a laser at aircraft. laser pointer 200mw can be strong enough to anyone, even at great distances blind.Worked like a charm in the lodge the second week. All in all a very worthy buy laser pointer.
In Germany only weak laser pointer with a maximum of one milliwatt power are allowed. strong green laser pointer on the internet buying, but can be ordered also significantly stronger laser pointer. It is enough, a man so to illuminate only a few milliseconds to him to hide for a long time.
So that I do not understand so real. At first the customs confiscated the laser pointer and then releases it again? As you said, you is certainly clear that he will keep the laser pointer not only in the showcase. Now, I wonder if it something do with it, do we not also part of the blame here must wear the customs? They could have prevented it so, in which they do not release the laser pointer ..
This cool burning Laser Pointer is more effective than any others
lasers I received before. You can never imagine how powerful it will be
unless you tried it by yourself. It is just an important reason that I
would like to make a review of this product.
The green laser 300mw
High Quality is absolutely not a typical laser. It has a bigger size
than those of formal lasers, thus it is no toy to let your boy to play
with. The constant research and development of laser diode technology
have made this most powerful laser gadget available in the world.
LaserTo owns the most powerful 450nm blue laser pointer. This is really a
very powerful gadget, and people should always pay special attention to
it.
High power green laser pointers will be a nice gift for everyone - child or adult. And it's not just entertainment: it can help in some situations.
It is characterized by excellent visibility of the beam, as the green
light is best perceived by the human eye. Its beam can be seen in the
evening and at night.
Thanks to the green laser disappears danger that you get lost in the woods. The mist also shows great.
According to current issues prevailing on the inspection and quarantine departments for investigation, the high power laser pointer market, the most powerful product between 1-5 milliwatts, or more than 5 mW, resulting in major risks public safety vision. The main reason is the production company, suppliers and the general lack of use of laser safety, laser-sided pursuit of clarity consumer awareness, but they ignore the damage caused by the Laser Pointer Green .
Laser pointers used to be the sole domain of business presentation makers and public speakers, but now they're ubiquitous. As many pet owners (and pet toy producers) have realized, cats love chasing tiny bright dots. Given minimal precautions, laser pointers are safe toys that keep your cat active and happy.
The Red Laser Pen Pointer's output power, the more likely it will cause serious eye injuries, burn skin and temporarily impair the vision of pilots or drivers. That much is clear.
But judging the safety of that laser pointer in your desk drawer or in your kid's hand isn't simple.
"The consumer is in a difficult position," said Daniel Hewett, health promotion officer at the U.S. Food and Drug Administration's Center for Devices and Radiological Health, the agency tasked with enforcing the rule for products that emit radiation.
The classic laser diode emits in the red spectral range from 635 nm
to 680 nm. Depending on the field of application and required
specifications, we can provide you with a suitable Laser Pointer 10mW diode with a power range from 3 mW to 4 mW.
We offer both the smallest and top-selling CD housings available on the
market - 3.3 mm and 5.6 mm housings, respectively. We also have C/CT
mount diodes available. Upon request, we can fiber couple your diode.
Many people have a red laser pointer and some really cool people have the green laser pointer. But very few people have them both built into a single unit. Being the cutting edge geek that you are, we know you'll choose this dual output beauty. Why would you want to be like everybody else?
20mW Green laser Pointer Pen are helpful when giving a presentation. Just don’t let the beam hit you in the eye—especially when it’s green. The National Institute of Standards and Technology says that nearly 90 percent of commercially available green pointers and about half of red pointers they tested are too strong and violate federal safety regulations.
When handheld lasers first came onto the scene, they were expensive and not very powerful. In recent years, they have become stronger and more easily accessible. laser pointer 300mw are now so powerful that even the handheld ones can do permanent damage to somebody standing 10 miles away. And that, by any definition, by any standard, is a weapon. And dangerous weapons — ones that can permanently and irreparably injure somebody standing literally on the other side of Black Rock City — really have no place at Burning Man.
In addition, children also curious what the hell laser pointer is and would try to prove it themselves. For instance, can laser pointer travels as long as it introduces or can it really point at aircraft in the sky? Is it true that laser pointer can make temporary or permanent blindness? What’s worse, they even try to test what they heard of by others or the internet. There are many aviation and non-aviation incidents happened due to children’s misusing of laser pointer. One can never image how powerful the laser pointer is and how horrible incidents it causes. A ten years’ girl tried to change her eyes color by shining a 10mW blue laser pointer into eyes directly, she felt uncomfortable when doing it several minutes later but with the belief it would successful and lead to left retina was burnt and lose sight since then. The harm of laser pointer 100mw brings is incurable, there has no way to regain sight any more. She was very regretful to do such stupid thing but it was too late.
Here you will find a selection of the best high power Laser Pointer for sale pen at the best discount prices possible. We provide detailed information about our different high power laser pointers to help you find the perfect one for you and your needs. Whether you need a high powered laser pointer for professional reasons or something less powerful for fun you will find it here. If you have any questions about any of our laser pointer pens and you are not finding the answers here please let us know and we will be more than happy to assist you.
Green lasers use a shorter wavelength of light than red ones, making them brighter and more dangerous. The darker part of the retina heats up from the green laser’s intense, yet invisible, infrared light, which can cause retinal scarring and even blind spots. Because the damaging wavelengths are invisible, the eye’s natural defense mechanism—its eyelid—doesn’t close to provide protection.
A 30mW Green Laser pen fosters the detachment of the presenter from the presentation. This is unfortunately the standard presentation mode by the entire community without anyone ever having made a conscious choice about it and has broader sources than just laser pointers.
The laser pointer safety testing report could also be used by retailers who sell laser pointers (manufactured by other companies), to demonstrate they are selling a product that meets the U.S. CDRH or other global requirements for laser safety.
http://www.lasereshop.com/green-laserpointer/p-120.html
http://www.nostre.com/blogs/post/9504
http://www.masterpeace.org/blogs/post/for_years_pointing_a_ultra_powerful_laser_pointer
FOR years, pointing a Ultra Powerful Laser Pointer at an aeroplane has been, unlike some other similarly stupid and dangerous acts, relatively easy to get away with. It only takes an instant to put a planeload of lives at risk and then drive away. But now America's Federal Bureau of Investigation is doubling down on its effort to find and prosecute the perpetrators of this increasingly common crime. Earlier this year, the FBI launched a pilot programme offering $10,000 rewards for information leading to the arrest and conviction of people who shine lasers at planes; last week, the agency announced that it is taking the idea national.
This article from Princeton University deals with laser pointer use and human effect, and it mentions that use of Laser Pointer Green that are higher than 5 mW are dangerous and should not be used, so it seems like the green one might be safe, although they recommend that the lower the output the better, as they will be safer.
Like with any laser, avoid pointing it at your cat's eyes, or at reflective surfaces that might reflect the laser into their eyes, and that can cause problems, the same way it can for humans.
A recent study released by researchers at the National Institute of Standards and Technology (NIST) has revealed an alarming trend. Of 122 hand-held Red Laser Pen Pointer tested, 44% of red lasers and 90% of green lasers tested failed federal safety regulations.
The primary culprit was overpowered units. The Code of Federal Regulations in the United States limits commercial class IIIa lasers to 5 milliwatts (mW). And yes, lasers above 5 mW are commercially available in the United States, but it is illegal to market them as Class IIIa devices. Some units in the NIST study tested as high as 13 times over the legal limit at 66.5 mW. For context, many military grade rifle mounted lasers are rated at 50 mW.
The Quartet High Impact Plastic Laser Pointer 10mW (Silver) from Apollo is a high-powered laser pointer encased in a brushed aluminum body with gold accents, with a built-in pocket clip. The red beam can be projected from up to 1500' away, making it an ideal choice for large conference rooms or meeting spaces. This is a class 3 laser and the (2) AAA batteries required to power it are included with the device.
On 1 March 2014 the Customs Import Prohibition (High-power Laser Pointers) Order 2013 came into force. These regulations restrict the sale/supply of high-power laser pointers to those who are “authorised supplier(s)”. The regulation also restricts the acquisition of such devices to those who are “authorised recipient(s)”.
The new regulations do not ban laser pointers outright but they do impose controls on the supply chain and people are required to justify why they need the higher power devices (as opposed to a lower power laser pointer).
If your security personnel use a laser pointer device, they must view this Ministry of Health flow chart to tell whether or not their device is a high-power laser pointer covered by the new controls.
