Monday, September 12, 2011

How to Choose a Perfect Laser Pointer?

With the prevalence of laser pointer, people who want to buy lasers may feel confused about choosing a wonderful one. In fact, laser pointers have many categories according to beam color, output power, laser class, applications and so on. Thus, the difficulty of choosing a perfect laser has been greatly added.


Green, red and blue laser pointers are the most popular and usual device in the laser world. It is a truth that they have taken up the most market share and I dare to say that at least 90% people would select one from the three categories. Green laser pointer is relatively cheap compared to red and blue ones with the same output power. That’s because the green laser technology is quite matured and manufacturers can produce high quality green laser pointers at low cost.

People with different purposes and intentions would choose different laser pointers. If they were professional people like astronomy professors, military armies, scientists or doctors, then high power laser pointers are more appropriate and they’d better to purchase special lasers such as astronomy lasers and military lasers. Besides, powerful laser pointers are necessary for people who want to carry on burning and thermal experiments. On the other hand, a laser with 5mW is already enough for those people who want to just have fun with the pets for the sake of their safety.

There are several differences between green lasers and red lasers. Green laser pointer is brighter than a red one under the same circumstance with the same output power. That’s because human beings are most sensitive to the green color. Therefore, people who often carry out outdoor activities should choose green laser pointer for pointing and guidance. On the contrary, red laser pointer is often used for indoor long distance pointing, such as business meeting and teaching presentations. What’s more, low power red lasers are wonderful choices to avoid injuries and harm and hurts for human eyes.

Many online laser stores are available with the development of economy and laser technology, and choosing a reputable and reliable laser seller is quite important no matter what kind of laser will you choose. 

Friday, September 2, 2011

Selection of High Power Green Laser Pointers


Laser pointer may be a strange concept for common people and it is far away from our daily life. However, laser is indeed a useful gadget for professional people such as scientists, teachers and astronomy hobbyists.

Laser pointer is a small device designed to highlight objects by projecting a small bright spot onto them. It is a capable tool for long distance guidance and pointing. Doctors says that laser pointers with power less than 5mW are safe to use, but low power lasers cannot meet people’s demands under many situations. For example, a 5mW green laser cannot burn paper and cut hard metals.


People are more likely to purchase high power green laser pointers like 100mW, 150mW to complete various assignments. And Powerful lasers are earning popularity rapidly in the laser world with numerous functions and applications. Usually, professional people like military armies, teachers or professors in universities, astronomy lovers, scientists who carry on laser experiments and researches are the main customer source of high power laser devices.

Knowing the enemies well is a key element to win during the war. Many laser weapons have been widely used with quick technology development in modern times. High power laser pointers have better and clearer visions at night and they are quite useful for soldiers’ long distance identification of enemies.

Teachers during lectures and seminars in big classrooms often make use of green laser pointer for presentations. Hard explanations or hands waving are no longer necessary and the teacher just needs to point the laser at the screen or blackboard wherever he stands. The listeners can understand the teacher easily.

Green laser pointer is widely used for stargazing and celestial objects observation. When there are many people around you or the weather has low visibility, having a high power green laser is fundamental and important. On the contrary, low power ones have lots of limitations when the star watchers encounter foggy weather.

High power laser pointers are great aids for hikers and campers. Nothing is worse than being stuck in the bush on rainy days with wet matches. Strong lasers have great ability to light matches. Besides, laser with shining and bright beam is visible for miles and it can send out help signal if people are lost or need help.

High power laser pointers have radiation and they are harmful to the retina of human eyes. It is important for laser users to take protective methods in advance and laser safety goggle is a special accessory for laser protection. Besides, laser men also need to keep an eye on the safety of surrounding people and never shine the laser beam directly to people’s eyes.