Laser Diodes for Projectors

Compared to Light Emitting Diodes (LEDs), semiconductor laser diodes have low power consumption, high-power output and can be used with optical systems having a higher maximum aperture. These considerable advantages mean that they can be used for projectors that do not require focal adjustment.
Mitsubishi Electric has a range of lasers available, including a multi-mode semiconductor laser with a 638nm wavelength and 3.8W output (when pulse-driven) , 2.1W output (when CW-driven) that provides highly visible, vibrant red colors for color projectors.