Light beam scanning display
View Patent ↗A light beam scanning display for displaying an image on a drawing screen by modulating laser beams from three primary color light sources, the three primary color light sources being arranged in close vicinity to each other, based on image data respectively and then scanning the laser beams, the light beam scanning display comprising: a parallelizing section that parallelizes respective laser beams; wherein the laser beams being parallelized by the parallelizing section to form one pixel of a drawn image on the drawing screen via different optical paths such that optical axes of the laser beams do not overlap with each other.
1. A light beam scanning display for displaying an image on a drawing screen by modulating laser beams from three primary color light sources, the three primary color light sources being arranged in close vicinity to each other, based on image data respectively and then scanning the laser beams, the light beam scanning display comprising:
a parallelizing section that parallelizes respective laser beams;
wherein the laser beams being parallelized by the parallelizing section to form one pixel of a drawn image on the drawing screen via different optical paths such that optical axes of the laser beams do not overlap with each other, and
wherein the parallelized laser beams form the one pixel at the drawing screen.
2. A light beam scanning display according to claim 1 ,
wherein the parallelizing section comprises lenses that are provided to correspond to the laser beams respectively.
3. A light beam scanning display according to claim 2 ,
wherein the lenses comprises at least one lens arranged to deviate its optical axis from a center of the corresponding laser beam.
4. A light beam scanning display according to claim 1 ,
wherein the three primary color light sources are sealed in one package.
5. A light beam scanning display according to claim 4 ,
wherein the parallelizing section comprises lenses that are provided to correspond to the laser beams respectively, and
wherein the lenses are sealed in an interior of the package.
6. A light beam scanning display according to claim 2 ,
wherein the lenses are constructed as a lens array in which the lenses that parallelizes the laser beams respectively are integrated together.
7. A light beam scanning display according to claim 4 ,
wherein the lenses are constructed as a lens array in which the lenses that parallelizes the laser beams respectively are integrated together.
8. A light beam scanning display according to claim 1 , further comprising:
optical fibers that introduces the laser beams from the light sources respectively to transmit;
wherein the parallelizing section comprises lenses that are respectively provided to light emergent sides of the optical fibers to parallelize each of emergent beams from the optical fibers, such that the optical axes of the laser beams emitted from the optical fibers do not overlap with each other.
9. A light beam scanning display according to claim 2 ,
wherein the laser beams are deflected by a deflecting device for display on the drawing screen such that the optical axes of the laser beams diverge along a single axis.
10. A light beam scanning display according to claim 4 ,
wherein the laser beams are deflected by a deflecting device for display on the drawing screen such that the optical axes of the laser beams diverge along a single axis.
11. A light beam scanning display according to claim 5 ,
wherein the lenses respectively correspond to beams having different wavelengths (colors), and the lenses parallelize the respective beams having different wavelengths such that the parallelized beams are substantially parallel to each other.
12. The light beam scanning display according to claim 1 , wherein the parallelized laser beams form one pixel of the drawn image on the drawing screen via the different optical paths such that optical axes of the parallelized laser beams do not overlap with each other throughout the different optical paths.