Homemade RGB Laser Projector
Red - 700mW & nbsp; + three-lens collimator to narrow the beam.
Green - 100mW
Blue - 2000mW
+ drivers for each laser with TTL or equivalent. Managed.
2 dichroic mirrors to bring together rays of different wavelengths.
Galvo - 20K + feedback amplifiers.
USB 5.1 sound card C-media + Spaghetti 22.214.171.124
+ a block of amplifiers on the LM358 for amplification in amplitude and DC offset of signals from each channel /
Meals: & nbsp;
12V ATX from a computer & nbsp; or 12V from a battery (camping option with a laptop).
secondary amplifier power supply
+ -20V galvanometers (KA7500 + 2xKT819)
Another interesting color projector design: p>