What is the laser pointer alternative?
Compared to a simple, shiny light bulb, which can absorb tens to many watts rather than milliwatts, 5 milliwatts seems small. However, the high powered laser is particularly concentrated in a very slender beam. In addition, the beam is highly collimated, which means it spreads out very slowly. Laser Pointers typically emit a beam of light about a millimeter in diameter. Even a kilometer apart, the beam is no more than a meter. Stargazers' preferred pointer uses a neodymium diode laser pointer and emits a green beam with a wavelength of 532 nanometers. Such lasers look much brighter than the more common diode lasers that produce a purple beam with a wavelength of more than 630 nm. The rationale: human eyes are a good deal, and even a good environmentally friendly light is easier than a deep red.
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Time of flight - Measures the time it takes for a laser marker to travel to and from a position. The formula is usually used to measure large distances over a range of several metres kilometres. Laser devices designed to measure short distances can accurately measure within a few centimeters or millimeters. Laser range dimensions are also used for professional styles in forest stocks with special leaf filters, distance dimensions for moving installation targets or areas, inventory management programs, metal trade production strategies, construction, real estate, 3D modeling, and various military applications in science.
2021-12-02 12:26:06
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