Ads
related to: orange laser pointer light pens
Search results
Results from the WOW.Com Content Network
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.
Light intensity 0.5 μW/cm 2; for example, a legal 5 mW laser pointer at 3,700 feet (1,100 m). FAA flight simulator showing veiling glare where it is hard to see through the light to the background scene. Light level 5.0 μW/cm 2; for example, a legal 5 mW laser pointer at 1,200 feet (370 m).
Home projector, primary light source for some recent small projectors AlGaInP, AlGaAs: 0.63-0.9 μm Optical discs, laser pointers, data communications. 780 nm compact disc, 650 nm general DVD player and 635 nm DVD for Authoring recorder laser are the most common lasers type in the world. Solid-state laser pumping, machining, medical.
Laser pointers, even those sold for less than $20 online, can distract pilots or cause flash blindness — of particular danger during takeoff and landing, when many incidents are reported.
Laser pointers. In the period from 1999 to 2016, increasing attention has been paid to the risks posed by so-called laser pointers and laser pens. Typically, the sale of laser pointers is restricted to either class 3A (<5 mW) or class 2 (<1 mW), depending on local regulations.
A telescope in the Very Large Telescope system producing four orange laser guide stars. A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser originated as an acronym for light amplification by stimulated emission of radiation.
Ads
related to: orange laser pointer light pens