5mW laser pointers

Discussion in 'The Projects Forum' started by Solderman, Mar 3, 2012.

  1. Solderman

    Thread Starter New Member

    Mar 3, 2012
    I ordered 5 5 mW laser module's on DealExtreme.com, I am wondering if any body has made a pen into a laser pointer and when you click it the laser comes on? Well since I ordered 5 I am going to try it. I plan to use very small button cell batteries that will fit in the pen and have to cut away the tip of the pen so the laser pokes through. Then for the button I will either buy a small button at radio shack or put a thin piece of wire on the bottom notches on the pen and then put one on the top notches across from each other and do that with every other one. Please tell me if you think it will work, and I did't get them yet so I cant show u any pictures but once I am done I will post pics.
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    Why did u buy when they are already out there.

    And besides Lasers are not something to toy with.
  3. Wendy


    Mar 24, 2008
    5mw are toys. Higher wattages are not.

    Laser diode strongly resemble LEDs, but aren't. You will probably need a current regulator of some sort, even a minor surge will blow these parts.

    Why are you trying to DIY when the finished products are so cheap?

    Instead of a RS switch, when all tend to be as large as they get, think something like a tactile switch, which is momentary contact.

    Here is an example of one.



    The part is ¼" X ¼"
  4. bertus


    Apr 5, 2008

    Laserpointers of 5 mW can do great harm to the eyes.

    Even a 1 mW laser pointer is already dangerous, see this quote:

    This quote is from the laser sfaty page of sams FAQ:

    I would say stop playing dangerous.

  5. Solderman

    Thread Starter New Member

    Mar 3, 2012
    I wanted it to be disguised.