Methods and apparatus for image projection

An image projection apparatus, comprising:

• converter means for outputting a red digital signal, a green digital signal and a blue digital signal in response to a video signal representative of a color image;
• time base correction means for correcting timing errors of the red, green and blue digital signals;
• serial to parallel conversion means for generating sets of parallel data representative of the color image;
• a plurality of primary wavelength light beamlet sources for generating a plurality of parallel traveling beamlets;
• modulation means for modulating the plurality of the parallel traveling beamlets in response to the parallel data, the modulation means including at least one Mach-Zehnder interferometer per beamlet;
• and
• means for scanning and projecting the modulated parallel traveling beamlets.

An image projection apparatus, comprising:

• a plurality of primary wavelength light sources for generating a plurality of parallel traveling light beamlets, each primary wavelength light source including a linear array of semiconductor laser diodes, all of the semiconductor laser diodes of such linear array operative to emit light beamlets having a substantially same wavelength, the substantially same wavelength being different from that of light beamlets emitted by a linear array of another of the Plurality of Primary wavelength light sources;
• means for modulating each parallel traveling light beamlet;
• and
• means for scanning and projecting the modulated parallel traveling light beamlets to generate pixels onto an image receptor, wherein said plurality of primary wavelength light beam sources further comprises:
• at least one non-linear harmonic converter for multiplying a frequency of light beamlets generated by the linear array of semiconductor laser diodes of at least one primary wavelength light source.

An image projection apparatus, comprising:

• a plurality of primary wavelength light sources for generating a plurality of parallel traveling light beamlets, each primary wavelength light source including a linear array of semiconductor laser diodes, the semiconductor laser diodes of such linear array operative to emit light beamlets having a substantially same wavelength;
• at least one Mach-Zehnder interferometer per beamlet for modulating each parallel traveling light beamlet;
• and
• means for scanning and projecting the modulated parallel traveling light beamlets to generate pixels onto an image receptor.

An method of projecting an image, comprising the steps of:

• generating a plurality of parallel traveling light beamlets from a plurality of primary wavelength light sources, each primary wavelength light source including a linear array of semiconductor laser diodes for generating parallel traveling light beamlets, all of the semiconductor laser diodes of such linear array operative to emit light beamlets having a substantially same wavelength, the substantially same wavelength being different from that of light beamlets emitted by a linear array of another of the plurality of primary wavelength light sources, the plurality of primary wavelength light sources including at least one non-linear harmonic converter for multiplying a frequency of light beamlets generated by the linear array of semiconductor laser diodes of at least one primary wavelength light source;
• modulating each parallel traveling light beamlet;
• and
• scanning and projecting the modulated parallel traveling light beamlets to generate pixels onto an image receptor.

A method of projecting an image, comprising the steps of:

• outputting a red digital signal, a green digital signal and a blue digital signal in response to a video signal representative of a color image;
• correcting timing errors of the red, green and blue digital signals;
• generating sets of parallel data from serial data representative of the color image;
• generating a plurality of parallel traveling beamlets from a plurality of primary wavelength light beamlet sources;
• modulating with at least one Mach-Zehnder interferometer per beamlet the plurality of the parallel traveling beamlets in response to the parallel data;
• and
• scanning and projecting the modulated parallel traveling beamlets.

A method of projecting an image, comprising the steps of:

• generating a plurality of parallel traveling light beamlets from a plurality of primary wavelength light sources, each primary wavelength light source including a linear array of semiconductor laser diodes, all of the semiconductor laser diodes of such linear array operative to emit light beamlets having a substantially same wavelength, the substantially same wavelength being different from that of light beamlets emitted by a linear array of another of the plurality of primary wavelength light sources;
• modulating each parallel traveling light beamlet;
• means for scanning and projecting the modulated parallel traveling light beamlets to generate pixels onto an image receptor;
• and
• multiplying with at least one non-linear harmonic converter a frequency of light beamlets generated by the linear array of semiconductor laser diodes of at least one primary wavelength light source.

A method of projecting an image, comprising the steps of:

• generating a plurality of parallel traveling light beamlets from a plurality of primary wavelength light sources, each primary wavelength light source including a linear array of semiconductor laser diodes, the semiconductor laser diodes of such linear array operative to emit light beamlets having a substantially same wavelength;
• modulating each parallel traveling light beamlet with at least one Mach-Zehnder interferometer per beamlet;
• and
• scanning and projecting the modulated parallel traveling light beamlets to generate pixels onto an image receptor.