Wide color gamut projector
View Patent ↗A wide color gamut projector having a plurality of dichroic prisms configured to split a light beam into six primary color components and direct each of the six primary color components to separate digital micromirror devices is disclosed. The projector further comprises a translucent rotatable drum having different polarization sections, wherein the light beam is capable of being passed orthogonally through a wall of the drum.
1. A color gamut projector comprising:
a plurality of separate digital micromirror devices; and
a plurality of dichroic prisms configured to split a light beam into six primary color components and direct each of the six primary color components to the separate digital micromirror devices.
2. The color gamut projector according to claim 1 , wherein the six primary color components comprise a cyan color component, a blue color component, a yellow color component, a green color component, a red color component, and a magenta color component.
3. The color gamut projector according to claim 1 , wherein the color components are reflected from the digital micromirror devices onto a display surface.
4. The color gamut projector according to claim 1 , wherein the light beam is emitted by a single light source.
5. The color gamut projector according to claim 1 , further comprising:
a total internal reflection prism for directing the light beam into the plurality of dichroic prisms.
6. The color gamut projector according to claim 1 , wherein at least one of the plurality of dichroic prisms is a 45 degree dichroic prism.
7. The color gamut projector according to claim 1 , further comprising:
a translucent rotatable drum having differently polarizing sections;
wherein the light beam is capable of being passed generally orthogonally through a wall of the drum.
8. The color gamut projector according to claim 7 , wherein the light beam is passed through the wall of the drum as the drum is rotated about a central axis of the drum.
9. The color gamut projector according to claim 7 , wherein the differently polarizing sections are either P-polarizing sections or S-polarizing sections.
10. The color gamut projector according to claim 9 , wherein each P-polarized section is generally circumferentially bounded by S-polarizing sections and each S-polarizing section is generally circumferentially bounded by P-polarizing sections.
11. The color gamut projector according to claim 7 , wherein the differently polarizing sections are either clockwise circularly polarizing sections or counter-clockwise circularly polarizing sections.
12. The color gamut projector according to claim 11 , wherein each clockwise circularly polarizing section is generally circumferentially bounded by counter-clockwise circularly polarizing sections and each counter-clockwise circularly polarizing section is generally circumferentially bounded by clockwise circularly polarizing sections.
13. A prism assembly for a color gamut projector, comprising:
a plurality of dichroic prisms configured to split a light beam into six primary color components and direct each of the six primary color components to separate digital micromirror devices.
14. The prism assembly according to claim 13 , wherein the six primary color components comprise a cyan color component, a blue color component, a yellow color component, a green color component, a red color component, and a magenta color component.
15. The prism assembly according to claim 13 , further comprising:
a total internal reflection prism for directing the light beam into the plurality of dichroic prisms.
16. The prism assembly according to claim 13 , wherein the color components are reflected from the digital micromirror devices onto a display surface.
17. The prism assembly according to claim 13 , wherein at least one of the plurality of dichroic prisms is a 45 degreed dichroic prism.
18. A method of color gamut image projection, comprising the steps of:
directing a light beam into a plurality of dichroic prisms;
splitting the light beam into six primary color components; and
directing each of the six primary color components to separate digital micromirror devices.
19. The method of color gamut image projection according to claim 18 , further comprising the step of:
directing each of the six primary color components from the digital micromirror devices onto a display surface.
20. The method of color gamut image projection according to claim 18 , further comprising the step of:
before directing a light beam into the plurality of dichroic prisms, directing light through a total internal reflection prism.