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A laser rangefinder, also known as a laser telemeter, is a rangefinder that uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the ...
Portable stereoscopic rangefinder from WWII The coincidence rangefinder of the Polish destroyer ORP Wicher Laser rangefinder Second World War German range finding tower at La Corbière Jersey. A rangefinder (also rangefinding telemeter, depending on the context) is a device used to measure distances to remote objects.
Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.
A measuring instrument is a device to measure a physical quantity. In the physical sciences , quality assurance , and engineering , measurement is the activity of obtaining and comparing physical quantities of real-world objects and events .
A coordinate-measuring machine (CMM) is a device that measures the geometry of physical objects by sensing discrete points on the surface of the object with a probe. Various types of probes are used in CMMs, the most common being mechanical and laser sensors, though optical and white light sensors do exist.
The Hercules 500, made by Laserglow, held the world record for the world's most powerful handheld laser in 2012, [9] and appeared in the Guinness Book of World Records in 2009. The laser was tested three times in five-minute durations using two separate laser power meters, and created an output 1W peak and 940 mW (+/- 20 mW) average power.
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