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.
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