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en.wikipedia.org/wiki/Laser_pointer

A laser pointer or laser pen is a small handheld device with a power source ( usually a battery) ... Laser pointers make a potent signaling tool, even in daylight, and are able to produce a bright signal for potential search and rescue vehicles ...

www.ask.com/youtube?q=How+to+Make+a+Laser+Pointer%3F&v=3gZ_HZkSzl4
Oct 12, 2014 ... How to make a laser pointer for less than $2. The only things I had to buy were some button cell batteries, and the laser diode. I got them both ...
www.ask.com/youtube?q=How+to+Make+a+Laser+Pointer%3F&v=TmZVkDAgn0A
Mar 17, 2012 ... This guide shows you How To Make A Laser Pointer Watch This and Other Related films here: ...

www.instructables.com/id/Homemade-laser-pointer

Last week i purchased a laser pointer for my little brother, I told him to be careful with it. Two days later, he opened the laser and broke it, he was...

www.wikihow.com/Make-a-Laser

Two Parts:Understanding How a Laser WorksBuilding a LaserCommunity Q&A ... Small lasers, such as those in CD and DVD players and laser pointers, use ...

www.wikihow.com/Build-a-Laser-Pointer

How to Build a Laser Pointer. A laser pointer is a small handheld device, which emits a narrow and coherent beam of light. A homemade laser pointer is cheap, ...

www.wired.com/2011/05/diy-lasers

May 16, 2011 ... It makes perfect sense, then, that you'd want to make an Altoids tin that ... Laser Pointer Forums has the details on this project, along with lots of ...

lifehacker.com/287252/turn-a-flashlight-into-a-handheld-burning-laser

Aug 8, 2007 ... ... it in a small flashlight to create a handheld laser burner that can light ... to see red light, and so are not disturbed by a red laser pointer. Reply.

sciencing.com/make-led-laser-pointer-8469839.html

Apr 25, 2017 ... A light-emitting diode (LED) and a semiconductor laser both generate light in the interface region between two different types of semiconductor ...