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This enables the laser lighting designer to create patterns such as Lissajous figures (such as are often displayed on oscilloscopes); other methods of creating images through the use of galvanometer scanners and X-Y control voltages can generate letters, shapes, and even complicated and intricate images. A planar or conical moving beam aimed ...
The electrical-to-optical conversion efficiency of modern laser technology can be as high as 85%, [8] and off-the-shelf semiconductor diode lasers can have an output efficiency of around 50%. [9] The optical-to-electrical conversion efficiency of a photovoltaic receiver can be over 50% for monochromatic (or laser) light. [10]
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.
White light halogen incandescent flashlight, 6–8 W, 90–120 lm, 2.5–4 kcd, 100–120 m ANSI/NEMA FL 1-2009 beam distance; Non eye-safe laser sight, the visibility depends on the environmental light conditions, suited for quick shots. At dusk the red laser dot is visible just over 150 m;
The ELI-ALPS research facility houses lasers which are used for the generation of ultra-intense, ultrashort pulses of laser light and various electromagnetic particles. [20] These ultrafast, high-repetition-rate bursts span a broad electromagnetic spectrum, ranging from terahertz frequencies ( 10 12 {\displaystyle 10^{12}} Hz) to X-ray ...
To give another example, of a more powerful laser—the type that might be used in an outdoor laser show: a 6-watt green (532 nm) laser with a 1.1 milliradian beam divergence is an eye hazard to about 1,600 feet (490 meters), can cause flash blindness to about 8,200 feet (1.5 mi/2.5 km), causes veiling glare to about 36,800 feet (7 mi; 11 km ...
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