Power of Laser Pointer

With the development of technology, laser pointer has became one of the latest technical products, laser pointer finally applied in our daily life, while laser has been existed for almost 60 years. Laser is a mysterious stuff that seldom has people has a well knowledge about it, even though you own a laser pointer. So what is laser pointer? As per the Wikipedia, laser is defined as "light amplification by stimulated emission of radiation." And in modern level of science and technology, the stimulation is accomplished by diode. Diode is an integral part of laser pointer. Then what is the special light used for? Well, laser is used for a variety purposes according to its almighty nature. The purposes including pointing out aim in a presentation, museum interpretation, sales house sand table indicating, aligning materials at construction sites, guided tools. Play with pets at home. For doctors, it is used for cosmetic and surgical procedures. For workers, it is used for carve up and alignment. Laser is also being able to use in the hunting, hiking, shooting and the beauty fields. Many items you encounter on a daily basis use laser, including CD and DVD players, bar code scanner dental drills.

After a preliminary understanding of laser, it will have many help in the next introduction of laser pointer. Laser pointer is a small handheld portable device with a power source and a laser diode emitting a very narrow coherent low-powered laser beam of visible light, intended to be used to highlight something of interest by illuminating it with a small bright spot of colored light. (Wikipedia) Laser is divided according to its output power and wavelength. The output power is stated in type of milliwatt. Lasers are divided into different safety classes on basis of output power. The technical of output power as it relates to laser products is the power level of the laser beam. A higher output power is brighter than a lower output power. So does the cost. More powerful laser cost more. 

Thus far, laser pointer has the different output power from 1mW to 3000mW. According to FDA, only the laser pointer with output power 5mW below meet with the safety standards and available for market. But it doesn't mean that it is forbidden to produce or to own a laser pointer more than 5mW, that is quite a ridiculous idea. What the FDA means is to let users to pay attention to the safety operation. More than 5mW laser pointer will lead the unimaginable damage. 50mW is able to burn cigarette or wear out the balloon in a flash. Even not to mention your eye. But we truly need more than 5mW laser pointer. Take stargazing for example, 5mW laser pointer is difficult to clearly indicate. The higher the power, the bigger the energy. The high power laser pointer even be able to cut board and glass pane.

So is there an all-in-one solution? Maybe a pair of laser safety goggles can be easily solve our scruple. Wearing laser safety goggles can protect eyes. But at the same time, it is also need to pay special attention that don't shoot laser on the glaze with reflection ability, and human body especially. Power of laser is the most important reason that laser can be popular and can't be replaced.

Have learned so much, do you want to own a laser pointer? Well for more information about laser or want to possess one, just browse www.highlasers.com. It is a professional laser products online shop with comprehensive knowledge of laser and perfect mature team support, you will have a satisfactory online shopping experience.

Source from: www.highlasers.com
Contact: support@highlasers.com

FDA Monitoring of Children's Laser Pointer Safety

Laser is everywhere, it is also possible touched by children. 

Children are always seen as the newborn sun at eight or nine clock in the morning, which means that children are our hope, children are our future. Thus we should try our best to protect children to make sure they live in a safety and health condition. Children safety problem has always been paid close attention by the public. For it is well known that children are our future. In the children safety problem, children's toys security gets more and more attention. The plenty of children's toys accidents make everybody have recognition about it. Recently, FDA issued a draft guidance documents. The draft aims to tell public, children's advocates and children's toys manufacturers the attitude and policy of FDA in the treatment of children's safety. In the draft, the main aimed at the children safety is laser products safety issues. 

Laser is a high-tech product with inconceivable power. Laser safety standards are varying. Now federal law case specification stipulate that all laser products sold in the United States must com ply with federal performance standards of laser products. While FDA has no special regulation about children laser products. Recently FDA comes up with a motion to make meaning to the laser products for children and stipulate that the laser products must conform to the luminous limit of International Electro technical Commission Class 1. The FDA is still working for the rulemaking. The purpose of the rule is to courage manufacturers to follow the luminous limit of children laser products, for the sake of reducing the risk of laser toys. 

The draft refers to the toy designed, produced and promoted for the children under 14 years old. Such toys are equipped with laser, such as cap pistol with laser for collimation; the spinning top that can emit laser beam while turning; the handheld laser device like laser sword; the fixed cylinder that can emit jumped laser beam and also the entertainment laser with gorgeous optics effects. They are all the amazing laser products. FDA believe that the radiation quantity of laser must be inferior to the luminous limit of the federal laser products performance Class 1 or the level of International Electrotechnical Commission Class 1 , which set according to the operate, maintenance, service , disabled and damaged condition. Within these standards, the risk for the user is the lowest. The current standard has no special mention to laser, but laser is an important part, because it laser could hurt your eyesight.

Come so far, the cap doesn't stipulate that children laser toy must accompany with Class 1 label. While the opposite is, FDA encourages manufacturers to stick labels on products to make customers aware of the risk clearly. FDA indicates that unless the parts of toy with laser can be removed, as well as can emit laser alone, otherwise the whole toys shall be regarded as laser products. Relevant products must obtain product certificate. Children toy safety is waiting to be solved. Buying a safety laser pointer with FDA label is necessary. Well, please allow me to recommend you with www.highlasers.com. It is a professional and reliable laser devices supplier and all of the laser products sold from their company are all certificated by FDA, the most authoritative safety organization. 

Source from: www.highlasers.com

New Type Laser Pointer with Laser Safety Key

According to FDA, power more than 5mW laser pointer will cause the damage to human body, especially the eyes those sensitive parts. But we do know that laser is not only with the own usage as pet's toy, the higher power laser as 50mW or 100mW can be applied in stargazing or some burn experiments for the amateurs, we can't ignore the necessary demand just in the safety side. But there must take some measures to prevent the damage it may occur. In the laser application of industry field, the engineers will have some professional protection measures such as the industry safety goggles and even the protection suit, operate above the reflective materials. But to the domestic consumers operate outside the lab, what should they do, or do they have the awareness to make those series of protection with the cost of much money? While there might be a disappointed answer. On the one hand, that customers have no aware of the safety awareness, on the other hands, the expensive additional fee. The rest of consideration should move to the responsibility of the producer. They have the total duty to project a smart and safety design at the bottom. On this occasion, the cost will be added, thus increase the cost of production. While we all know that the goal of the producer is to try to reduce the production cost thus make the products have more competitive. From this into consideration, only the idiot will add a safety measure on the laser pointer. There comes the problem and this question, Is there will be a kindly idiot to do the idiot things just for the sake of customers on the safe side? We all want a affirmative answer, here we do have such lovely idiots.

The laser designers invent dual laser safety key. Dual safety key and remote control connector ensure the most secured operation for all proper, non-commercial use. Anybody under 18 years old are banned, and a pair of laser safety goggles is a must. The smart design is like the below picture shows, with a red tail at the end of the laser pointer, the usage of it is like the key on the running machine. You must have a acquaintance about running machine. You block the clamp on your cloth and the other end of the string is link to the machine switch. If the accident appeared in the process of running, such as tumble, this string tie in my cloth is pulled and the switch will shut. Well laser safety key has the same operating principle. We can shutdown the switch quickly in dangerous situation. The new type laser pointer with dual safety designs, we just introduce on above, then here comes the next safety key part.

 As the picture shows, you can see a metal circle up the red button. It is safe lock. It is designed to prevent accidental incident that if the laser pointer is unexpected hold by child. This circle just likes the locks of a door, you can't open it without the key. As same as that you can't turn on this laser pointer with the key. Now you may have a clear understanding about laser safety keys so far. Do you want one such safety product?

There is only one place has such design, also it is a online shop that can meet everyone' s demands worldwide. It is Highlasers. You can just browse their official website 

www. highlasers.com. It has varieties of power and wavelength laser pointers, laser sights, alignments and so on for your reference. If you have some technical question about laser or wondering what kind of laser suit for you, just don't be hesitate and send email to them, they will answer each question carefully and give you the corresponding help. 

Three Points for Laser Purchaser

For most laser amateur, it is a haughty thing to own a special laser pointer, which is the new symbolize of fashion and cool among people, especially for school boys.  It is always a proud thing for a person to hold a laser device in hand, but it doesn't mean that we can always get the most satisfied laser. Price is not the only factor that customers should pay attention to, and the quality and applications are important tips that deserve our real attention. Enough knowledge is always necessary before purchasing and then you can really enjoy the fun of the laser. Faced with the huge but disorderly sales market, we must have a conscious to make distinguish between shoddy and genuine lasers.

1. Keep a sober mind against low price but shoddy laser.

There may have the following situation. In order to attract more customers, a small amount of manufactures of laser will provide retailers the shoddy laser products in low price with bad or used laser diode for the sake of reducing the production cost repeatedly. Even replace the high power laser with low output power. Sometimes even the retailers have also been cheat and in the dark. In the meantime, consumers are mainly puzzled by the low price and the products' outer packing. Well it is obvious that this part of package price is taken from your wallet. Therefore, for consumers, they should stay awake of that you want, a perfect and genuine laser products or a perfect outer packing but shoddy laser. The consumers should concentrate on the quality, performance, specification and customer service, etc.

2. Confirm what function of laser you need.

Laser has an extensive applied range for its high performance, such as industry, presentation, astronomy, military, entertainment, medicine, biology, cosmetology, energy exploitation, signal propagation and so on. In addition, in different fields, it needs different laser, which owns different function. So before you purchase an ideal laser product, you should make clear of what kind of laser you need. For example, for the most common industrial field, there may need alignment laser, or OEM laser for cut things or correct alignment. If you are confused of which type of laser you need, you can ask the customer service of Highlasers for help. Their professionalism and service experience will help you find a suitable laser product. Just enter into their official website www.highlasers.com and send them an email, they will give you a satisfied answer timely. 

3. Confirm what specification you need.

If you are acquainted with laser, you might know laser with different output power and wavelength, which you see, the color. Generally, low powered laser as 1mW- 50mW are workable for presentation, stargazing, entertainment places. High power laser with an output power more than 150mW can be applied for burning experiments. The special high power laser more than tens of kilowatts has practical applications in military battlefield and scientific research. For the details, you can also contact with Highlasers for answer that is more precise. Please note, when operate high power laser, it is necessary to have a protective measures, wearing a pair of laser safety goggles for instance.

  

I believe above three steps is necessary to read for one who is going to purchase a laser pointer. Any blind purchase might bring you hurt in both money and body aspects. To select a shoddy laser is not only a waste of money, but also an injury to human eyes. In addition, enough safety knowledge is especially necessary when people hold a high power laser in hands. Do be more careful before purchasing, and you can finally get the most satisfied laser pointer at last. Moreover, please do remember, Highlasers is always beside you in the laser road.

From: www.highlasers.com

Scientists Make Hole on Drosophila's Head to Peek Into Brain Operation by Laser

Laser is geared to high technology, is rooted in people's daily life. Laser has a widely application, such as medical, military, industry, presentation and beauty. Recently, it is applied to biology. Scientist wants to know the brain activity of drosophila, he use laser instruments to make hole on its head, as the below picture shows. The only instrument to do the operation is a 3000mW laser pulse. The laser beam drills a 20 microns hole on drosophila's eyes, with depth of 250 microns. As showed in the yellow part of picture. The hole is tiny as a piece of hair. This research is also test on worm, ant and mouse. With the help of laser drilling, microscopic observation of animals allowed scientists to learn more features of animal biology. Seed a tiny lens into puny body of living mouse to observe and study how cancer formed and assess potential drug efficacy. It usually spends a long times to experiment with small animals and needs consummate skill and automaticity.

At present, Supriyo Sinha, IT specialist of Stanford University, developed a new way. It can do microscopic examination to animals in a very fast speed, less than s second time. There are three steps. First, scientist should anesthesia drosophila. Use tweezers clip insect careful and paste it on glass fiber to fix body and head. Then, use high power pulse ultraviolet laser punch at its head, the hole is about 12-350 microns. At last, put the armed drosophila into saline solution, this to make sure all the dissection process in a healthy environment.

Scientist analyzes drosophila with help of microscope. This tested drosophila is improved by genetic modification. Vivo protein combined with calcium ion release the green light, thus convenient for study the characteristics of brain nerve activity of fruit flies. According to reports, it will cost long time to observe brain activeness by traditional method, almost 18 hours. While the latest laser drilling technology needs only hundredth of the previous time. In addition, it can do more experiments on living animals at the same time. At present, the latest experimental results are published on Proceedings of the National Academy Sciences.

Laser technology is quite a help technology in the field of biology. With the help of such high precision technology, people can learn more information of the insects and in case to help human beings in solve of human disease. We can image that one day, the cancer can cure and people can clearly know what the animals are thinking and even communicate with them. Thanks the science. 

Want more information about laser, please browse www.highlasers.com. Highlasers is a professional and reliable laser device supplier with many years experience.