Laser-diode, liquid-crystal projector

A laser-diode, liquid-crystal projector using a laser diode as a light source and a liquid crystal element as an optical modulator,

• wherein the light source includes:
• a G laser diode for emitting green light of an elliptical shape elongated in a first direction;
• a B laser diode for emitting blue light of an elliptical shape elongated in the first direction, an R laser diode for emitting red light of an elliptical shape elongated in a direction perpendicular to the first direction, the R laser diode being disposed such that a power application pin thereof is arranged perpendicular to an installation direction of a power application pin of the G laser diode or the B laser diode,
• the laser-diode, liquid-crystal projector comprising:
• a first beam shaper for transforming light emitted from the light source in a perpendicularly intersecting pattern into uniform light;
• a second beam shaper for forming the light emitted from first beam shaper into a shape of an effective surface of the optical modulator;
• a field lens for condensing the light formed by the second beam shaper;
• a polarized beam splitter for reflecting the light incident from the field lens to the optical modulator and allowing an image incident from the optical modulator to be transmitted therethrough;
• and
• a projection lens for enlarging and projecting the image,
• wherein the G laser diode, the B laser diode, and the R laser diode are intrinsic multimode laser diodes,
• wherein light rays emitted from the G laser diode, the B laser diode, and the R laser diode configured to form light in a perpendicularly crossing shape have the same polarization axis.