How,Choose,Laser,Pointer,Have, technology How to Choose a Laser Pointer?
Active shredder safety technology for the small office. Shreds 15sheets per pass into 5/32" x 1-1/2" cross-cut particles (Security Level3). Patented SafeSense® Technology stops shredding when hands touch thepaper opening. Designated shredde The electronic cigarette is not new. People who buy electronic cigarette knows that this product has been in the market for years now. Despite some sectors apparently trying to shoot the product down from the shelves, the popularity of elect
Have you heard thelaser pointer? Do you know its magic function? If you are looking for a greatand proper laser pointer, I'd like to give some advice before you making adecision. It is different from normal toys or tools. If you don't use it in acorrect way, it will impair your or others health. As a result, this item is aprohibited item in some countries. You should know the policy of your countrybefore purchasing a laser. Laser pointer iscommonly used in those domains, such as teaching, speech, medicine, science,astronomy and entertainment. However, it is a difficult for those people tochoose a right one because laser pointers have different types and power.At first, I'd liketo talk about its appearance. The most common is laser pen which looks like apen. You just need to press the button and the laser will be emitted from theend of the pen. The other one looks like a flashlight. This kind of laserpointer usually has a greater power than laser pen. And then, let'shave a look at the power specification. When we choose laser pointer, there aresome description of specification. It can be divided into two parts: the wavelength and the power. The unit of wave length is NM. The common wave length is532nm. There are other different wave lengths, such as 405nm, 650nm. Otherwise,power is the key factor of laser light. The lowest power is about 3mw. Thestrongest power can be reached 1000mw. But it is not allowed to use exceptspecial purpose with a use license. At market, the laser pointers within 300mware available.Third, there aredifferent colors of laser pointers, such as green, red, blue and purple andblue. The common one is green laser pointer. The light of green laser is morevisible and brighter than other colors. The green laser is also thehot sale item.When you are readyto purchase one, you should be very clear your purpose. And then you could makea sensible choice at power and color aspects. If you just use it in a speech orclass, the laser under 50mw power is your great choice. The lower power oflaser, the price is cheaper. If you want to purchase a cheapest laser pointer,you should choose the green color because it is more visible and brighter.It is said thatlaser pointer can light a match. It is true, but not for all lasers. As weknow, power is the crucial factor to influence laser. In that way, the laserwith great power has the function, usually above 200mw power. If you are anastronomer, the green laser with great power your best choice. It has a bettereffect when you point stars. As long as thedevelopment of technology, its functions are increasingly improving. The firstgeneration is a single laser pen which only can emit a laser dot. The secondgeneration has some electronic functions on the base of the first generation.The typical product is projection laser which has page turning capacity. Thelatest generation is a breakthrough and innovation of technology. It not onlycan turn page over, but also is able to write words on the screen of computerand operate computer. In brief, youshould get a general idea of your purpose before purchasing a laser. And thenyou could choose one with a suitable power. The color is also a factor.
How,Choose,Laser,Pointer,Have,