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Laser pointer - Wikipedia


A laser pointer or laser pen is a small handheld device with a power source ( usually a battery) .... Also, most smaller 593.5 nm pointers work in pulsed mode, so they can use smaller and less powerf...

How Do Laser Pointers Work? | Techwalla.com


Laser pointers are small devices that emit a beam of light that projects a small, colored dot onto a surface. The main application of a laser pointer is to call ...

www.ask.com/youtube?q=How Laser Pointers Work?&v=ZNUUmb9vdQk
Feb 23, 2012 ... Richard Williams describing how a laser pointer works rbwilliams1000@gmail. com. ... How do lasers work? - Naked Science Scrapbook ...

What's Your Wavelength? - How Lasers Work | HowStuffWorks


Other lasers, such as diode lasers, are very weak and are used in today's pocket laser pointers. These lasers typically emit a red beam of light that has a ...

How do laser pointers work? | Socratic


Oct 6, 2015 ... See: Minute Physics: How lasers work Here is the inside of a typical inexpensive red laser pointer: And here is the inside of an expensive, ...

The Danger Of Green Laser Pointers - MIT Technology Review


Aug 12, 2010 ... Cheap green laser pointers can emit dangerous levels of infrared radiation, according to an investigation carried out by physicists in the US.

Lasers for Dummies - Wicked Lasers


What is output power and how does it affect laser visibility? ... players; bar code scanners; dental drills; laser-guided tools, such as levels; and laser pointers.

How laser pointer is made - material, history, used, parts ...


The laser pointer is a low cost portable laser that can be carried in the hand. .... Laser diodes are tested to make sure that they work after fabrication as well.

Dissection of Green Laser Pointer - Sci.Electronics.Repair FAQ


For a less gory procedure (reversible, at least in principle) that should work with minor modifications for several models of green laser pointers, see the chapter: ...

Laser Pointer Safety - Illegal laser pointers being sold by Amazon.com


Aug 13, 2013 ... The new Amazon.com policy requires pre-approval of laser pointers and .... That explains why the violet/purple laser pointer can work for ...

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How does a green laser pointer work? (Or: Why are ... - ScopeStuff


(Or: Why are they more expensive than red laser pointers?) Solid state green lasers are a relatively new item to the consumer market, but red laser pointers have ...

How Lasers Work | HowStuffWorks


Lasers are used in CD players, dental drills, eye surgery, and even tattoo removal. But what exactly is a laser? Learn about the various types of lasers and how ...

How Does a Laser Work - OR Laser


Lasers work to amplify a light source and turn it into one powerful, ... This is possible through devices such as laser pointers and can be very fun and educational ...