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The green laser is taking over the laser light markets very rapidly, thanks to its quality and the accuracy it offers. As the name suggests, it is a device that emits green colored laser light which can vary in intensities. It is a type of laser pointer that is preferred for outdoor/night time tasks because of the bright intensity of light it is capable of emitting. The green laser is equally good at at a variety of tasks that are accomplished well with the help of a laser light, for instance, presentations, medical surgeries, military usage, underwater missions and astronomy tasks. There are certain safety concerns which needs to be taken into account while working with green laser emitting devices, especially if they are optical versions.. A green laser beam can cause damage to eyes if they are exposed to it for considerable amount of time. Like all laser pointer devices, they are often forbidden or controlled in certain public environments in case of misconduct of the device by the user. There are many places and situations in life when a green laser can prove really handy. For normal presentations, in either multimedia (computer) format, or older methods (board/OHP) in professional or educations settings, a green laser proves a very useful to point out key aspects of images and text that the presenter would like the audience to focus on. The fact that the instructor or presenter does not need to be close to the slide, makes the whole presentation experience more interactive and enjoyable. Other industries that use a green laser are entertainment and military operations. A green laser is a really useful tool to have at night, to aid communication, or to help with accuracy. The brightness of a green laser also makes it suitable for underwater operations in a range of water environments e.g. swimming pools, ponds, rivers, sea. The accuracy and clarity of a green laser is also helpful during astronomy related activities (pointing with fingers or torches can be very confusing to understand). Even when the weather is less than desirable and visibility is obscured, it can work very well. Green laser devices, like all the other laser devices, are very handy and can be fitted in small places such as pockets, pencil cases, small rucksack compartments etc. They can also be powered by both rechargeable and disposable batteries, so they are extremely portable devices.
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