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Laser pointer


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 powerfu...

www.ask.com/youtube?q=How Laser Pointers Work?&v=ZNUUmb9vdQk
Feb 23, 2012 ... ... describing how a laser pointer works rbwilliams1000@gmail.com. ... Why do Laser Diodes Need Driver Circuits And How Do They Work?

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 Do Laser Pointers Work? | eHow


The main application of a laser pointer is to call attention to specific areas during a public presentation. However, laser pointers have been adapted to be used ...

How Your Laser Pointer Works, At Least In Theory - Gizmodo


Dec 5, 2011 ... The next time you're annoying people from afar with your laser pointer, you'll have a greater appreciation for its bright and focused beam after ...

How Does a Laser Pen Work? - Laser Pointer Forums - Discuss Laser ...


A laser pen is composed of a laser diode, a battery, and possibly a lens. Many laser pointers are red or green lasers, depending on the quality.

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 ...

Laser Pointer Safety - FAQ


Below is more information about laser pointer safety in general. ..... in whether bans work should read the article "Ban on laser pointers has been a 'detriment' to  ...

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 ...

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.

More Info

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 ...

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.

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, ...