Light pointers are devices that emit a narrow beam of visible light, usually in the form of a laser. They are most commonly used in presentations, but can also be used in a variety of other applications, such as astronomy, surveying, and navigation. Light pointers have become increasingly popular due to their convenience, accuracy, and low cost.
In presentations, light pointers are used to draw attention to specific points. By emitting a powerful beam of light, the presenter can quickly and easily focus on a single point without having to move his or her hand. This makes it easier to keep track of the presentation and to keep the audience’s attention. The light pointer also helps to highlight important points, making it easier for the audience to understand the information being presented.
Light pointers can also be used in a variety of other applications. In astronomy, they can be used to point out stars and other celestial objects. In surveying, they can be used to pinpoint exact locations. And in navigation, they can be used to indicate directions.
Light pointers are becoming increasingly popular due to their convenience, accuracy, and low cost. They are easy to use and require no special training. They are also accurate, as the beam of light is very narrow, allowing the presenter to precisely point to the exact spot he or she wants. Finally, they are relatively inexpensive, making them accessible to a wide range of users.
In conclusion, light pointers are a convenient and cost-effective tool for presentations, astronomy, surveying, and navigation. They enable users to quickly and accurately pinpoint specific points, making them an invaluable tool for many different applications.
References
Balk, J., & Silver, P. (2019). The Ultimate Guide to Using a Laser Pointer for Presentations. Retrieved from https://www.presentermedia.com/blog/the-ultimate-guide-to-using-a-laser-pointer-for-presentations/
Houlihan, A. (2019). What Is a Laser Pointer? Retrieved from https://www.lifewire.com/what-is-a-laser-pointer-2484380
Robinson, L. (2016). What Is a Laser Pointer Used For? Retrieved from https://www.wisegeek.com/what-is-a-laser-pointer-used-for.htm