Laser projector with reduced optical elements and improved power efficiency

A laser projector comprising:

• a laser light source configured to generate a composite polarized beam;
• a first dichroic mirror configured to receive the composite polarized beam, and separate the composite polarized beam into a blue light beam with S polarization and a yellow light beam;
• a second dichroic mirror configured to receive the yellow light beam, and separate the yellow light beam into a green light beam with P polarization and a red light beam with S polarization;
• a first light valve configured to receive the blue light beam with S polarization and modulate the blue light beam with S polarization into a blue light beam with P polarization;
• a second light valve configured to receive the green light beam with P polarization and modulate the green light beam with P polarization into a green light beam with S polarization;
• a third light valve configured to receive the red light beam with S polarization and modulate the red light beam with S polarization into a red light beam with P polarization;
• and
• a beam combining module configured to combine the blue light beam with P polarization, the green light beam with S polarization and the red light beam with P polarization to form a multi-color image.