Surely, as a child, you played super spies, who always have the best weapons and secret designs that allow you to easily complete the task. Those children have grown up, but the dream of headphones that allow you to hear what is happening at the other end of the house, glasses that help you see through walls, and a laser that cuts through everything in its path remains. Let's try to assemble a laser with our own hands.
It is necessary
- 1. Flashlight.
- 2. Laser pointer.
- 3. Writer CD or DVD drive.
- 4. Screwdriver.
- 5. Wires.
- 6. Resistors.
- 7. Batteries.
Instructions
Step 1
Take an old CD or DVD burner. The most powerful laser is in the drives of Sony and LG, the weakest is in Samsung. You can take a broken drive. Most importantly, the cause of the breakdown is not the laser. These drives can be found in landfills. Used devices can also be bought on the market or in stores selling used equipment. Maybe some of your friends have such a drive.
Step 2
Disassemble the drive carefully. Try not to shake it. Laser drives are fragile. You will see a carriage that moves and allows you to write to disk. Carefully unscrew the carriage that holds the laser diodes. Please note that the drive housing and carriage are secured with a large number of screws. Be patient.
Step 3
Disconnect the red laser diode and set it aside. He will still be needed.
Step 4
Now you need a simple laser pointer, which can be found in almost any stall, even though such things are almost out of fashion.
Step 5
Unscrew the laser pointer body. The diode itself is located in the upper part of the case, and the battery in the lower part. Take out the diode that is installed in the pointer and replace it with the laser diode from the CD / DVD-RW drive.
Step 6
Never connect the laser diode directly to a power source. So it will quickly burn out. Use resistors whose resistance can only be selected empirically.
Step 7
The laser pointer can be inserted into the body of the flashlight, thus selecting the required battery power. Be sure to remove the glass from the flashlight as it will obstruct the laser beam.
