The present disclosure pertains to a method for 3D or multi-viewer projection of images. The method switches back and forth between left and right eye or multi-viewer data at single bit segment or multiple bit segment rates in a single projected image to create high quality 3D stereo or multi-viewer imaging with no motion artifacts.

A projection system includes a projection device configured to simultaneously project a first image light for a first image and a second image light for a second image; an eyeglass-type device which is to be worn by a user and configured to include a first optical module configured to transmit the first image light projected by the projection device and a second optical module configured to transmit the second image light projected by the projection device; and at least one light source unit configured to emit a source light of wavelengths that are in a visible light band and have a transmittance equal to or less than a predetermined value in both the first optical module and the second optical module.

A projection system includes a projection device configured to simultaneously project a first image light for a first image and a second image light for a second image; an eyeglass-type device which is to be worn by a user and configured to include a first optical module configured to transmit the first image light projected by the projection device and a second optical module configured to transmit the second image light projected by the projection device; and at least one light source unit configured to emit a source light of wavelengths that are in a visible light band and have a transmittance equal to or less than a predetermined value in both the first optical module and the second optical module.

Laser or narrow band light sources (e.g., red, green, and blue) are utilized to form left (e.g., R1, G1, B1) and right (e.g., R2, G2, B2) images of a 3D projection. Off-axis viewing of the projections which has the potential to cause crosstalk and/or loss of energy/brightness in any channel or color, is eliminated (or reduced to only highly oblique viewing angles) via the combined use of any of guard bands between light bands of adjacent channels, curvature of viewing filters, and selection of passband wavelengths that maximize usability of the passband as it “shifts” due to varying or increasing angles of off-axis viewing. Implemented with any number of light sources, the light sources selected may also be converted to showing 2D images where the additional light sources are utilized to affect a desirable increase in color gamut.

Laser or narrow band light sources (e.g., red, green, and blue) are utilized to form left (e.g., R1, G1, B1) and right (e.g., R2, G2, B2) images of a 3D projection. Off-axis viewing of the projections which has the potential to cause crosstalk and/or loss of energy/brightness in any channel or color, is eliminated (or reduced to only highly oblique viewing angles) via the combined use of any of guard bands between light bands of adjacent channels, curvature of viewing filters, and selection of passband wavelengths that maximize usability of the passband as it “shifts” due to varying or increasing angles of off-axis viewing. Implemented with any number of light sources, the light sources selected may also be converted to showing 2D images where the additional light sources are utilized to affect a desirable increase in color gamut.

A novel light source for a 3D display system includes a plurality of left eye light emitters and a plurality of right eye light emitters. The left eye emitters include a broad spectral distribution emitter and an overlapping narrow spectral distribution emitter in each of the blue, green, and red color bands. Similarly, the right eye emitters include a broad spectral distribution emitter and an overlapping narrow spectral distribution emitter in each of the blue, green, and red color bands. The combined spectral distributions of each of the broad and narrow emitters provide a primary light for each color and for each eye that has a desirable spectral shape, including wide bandwidth and short tail(s). The invention thus minimizes cross-talk and speckling in left- and right-eye images of 3D display systems.

A method for generating a second virtual object from a first virtual object, the second virtual object being projected on a projection screen, where the first virtual object is determined for a user in a first position, and where the second virtual object is determined for a user in a second position, different from the first known position, the position of the second virtual object being determined by applying the intercept theorem. Once the second virtual object has been determined, the method further includes the step of generating image data for the second virtual object, rendering the second virtual object by projecting the image data on the projection screen.

A method for generating a second virtual object from a first virtual object, the second virtual object being projected on a projection screen, where the first virtual object is determined for a user in a first position, and where the second virtual object is determined for a user in a second position, different from the first known position, the position of the second virtual object being determined by applying the intercept theorem. Once the second virtual object has been determined, the method further includes the step of generating image data for the second virtual object, rendering the second virtual object by projecting the image data on the projection screen.

An electrically controlled spectacle includes a spectacle frame and optoelectronic lenses housed in the frame. The lenses include a left lens and a right lens, each of the optoelectrical lenses having a plurality of states, wherein the state of the left lens is independent of the state of the right lens. The electrically controlled spectacle also includes a control unit housed in the frame, the control unit being adapted to control the state of each of the lenses independently.

An electrically controlled spectacle includes a spectacle frame and optoelectronic lenses housed in the frame. The lenses include a left lens and a right lens, each of the optoelectrical lenses having a plurality of states, wherein the state of the left lens is independent of the state of the right lens. The electrically controlled spectacle also includes a control unit housed in the frame, the control unit being adapted to control the state of each of the lenses independently.