A little project with scrap 780nm laser diode form CD burner :D I pressed the diode to metal pen and I can "write" on dark plastic, wood and gray cardboard :D. Diode is powered by LM317 set to 180mA.
Here is a video of this:
Laser Pen - YouTube
Watch in HD !
I'll want to show you my burning laser harvested from Pioneer BDC-TD01 Blu-Ray combo drive. It outputs about 90mW. Driver is my own modified Joule Thief and it runs off 3,7V accu.
Here is video of this:
MERRY CHRISTMAS BTW ! :D
There are videos of my laser:
DVD burner laser burns hole in white paper and ignites red matches - YouTube
DVD burner laser burns various objects (ignites firework and cuts match in a half/slices duct tape) - YouTube
This laser outputs nearly 300mW/650nm with standard acrylic Aixiz lens. The...
I want to show you my laser engraving pen which can write on dark plastic and wood. This idea came me when I saw my 780nm laser diodes lying around which I salvaged out from DVD burners. The advantage of 780nm is the human eye almost isn't sensitive to this wavelength, but is dangerous...
I want to show you my DVD laser. It's made from cheap 9 LED 3xAAA OEM flashlight and Lite-On Short Closed Can diode. Collimator has variable focusing and is made from metal part from VHS tape recorder. Lens is acrylic and came from 1Euro laser pointer - it's cheap but it works :D. Power source...
I want to show my little 150mW Blu-Ray laser. It contains acrylic lens and custom made heatsinking collimator. It was made from cheap OEM flashlight bought in builder shop. I snipped out the Blu-Ray logo in the flashlight with razor-blade. It's powered by 3xAAA 1,5V batteries and...
Hello, I'm from Poland and I'm 18 years old :yh:
I'll want to meet some people from this forum.
In my country lasers are unfortunately hard to find :/ Especially high power laser diodes.. The only way I can get laser diodes/or modules is internet auction. In my small town (about 50 000...