Laser Pointer are used in robotics, for example, for laser guidance to direct the robot to a goal position by means of a laser beam, i.e. showing goal positions to the robot optically instead of communicating them numerically. This intuitive interface simplifies directing the robot while visual feedback improves the positioning accuracy and allows for implicit localization.
Leisure and entertainment
Entertainment is one of the other applications that have been found for lasers. The most common use of lasers in entertainment can be seen in special effects used in laser shows. Clubs, parties and outdoor concerts all use high-power lasers, with safety precautions, as a spectacle. Laser shows are often extravagant, using lenses, mirrors and smoke.
Ultra Powerful Laser Pointer can be used in hiking or outdoor activities. Higher-powered laser pointers are bright enough to scare away large wild animals which makes them useful for hiking and camping. In these circumstances a laser pointer can also serve as a handy survival tool, as it can be used as a rescue signal in emergencies which is visible to aircraft and other parties, during both day and night conditions, at extreme distances. For example, during the night in August 2010 two men and a boy were rescued from marshland after their red laser pen was spotted by rescue teams.
Accurately aligned Blue Violet Laser Pointer are used as laser gunsights to aim a firearm.Some militaries use lasers to mark targets at night for aircraft. This is done to ensure that "friendly" and "enemy" targets are not mistaken. A friendly target may wear an IR emitting device that is only visible to those utilizing night vision (such as pilots.) To pinpoint the exact location of an enemy combatant, they would simply illuminate the target with a laser beam detectable by the attacking aircraft. This can be one of the most accurate ways of marking targets.
Lasers Help Identify the Origins of Emeralds
Researchers have recently demonstrated how laser-excited photoluminescence of emeralds can determine their structural properties as well as their place of origin. The study, first published in The Journal of Gemology, aims to provide a clear methodology to gemologists on how to determine whether an emerald is natural or synthesized, as well as establish a natural emeralds' geological origin. Laserglow's LRS 532nm laser was used as an excitation source.
Laser-Assisted Surgery Tool Delivers Large Particles into 100,000 cells per min
Researchers at the University of California, Los Angeles (UCLA) have developed a Biophotonic 50mw Green Laser Pointer Pen -Assisted Surgery Tool (BLAST) that can deliver nanoparticles, enzymes, antibodies, bacteria and other large particles into mammalian cells at 100,000 cells per minute. The delivery of such a large number of particles can help researchers understand the response of cells to external pathogens, the progression of diseases and the cell's defense mechanism against mutant mitochondrial DNA.
The BLAST system generates an array of bubbles that explode in response to laser pulsing. This causes microscopic fissures to appear on adjacent cell membranes through which particles may be delivered.