Sunday, February 23, 2014

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

Wednesday, February 12, 2014

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.