Abstract: An apparatus includes a spatial light modulator (SLM) having a first region and a second region and a phase light modulator (PLM) optically coupled to the SLM. The PLM is configured to receive first light having a first color and receive second light having a second color, the second color different than the first color. The PLM is also configured to direct the first light towards the first region of the SLM and direct the second light towards the second region of the SLM.

Abstract: A display device includes laser light sources configured to emit respective light beams at respective wavelengths for respective color modes, a PLM configured to reflect and scroll the light beams on a projection surface, and lenses configured to project the light beams from the laser light sources onto respective nonoverlapping areas on the PLM.

Abstract: Described examples a three-dimensional printer includes a vat having a transparent bottom, the vat configured to contain a photo-polymerizing resin and a lift plate movably positioned within the vat. The three-dimensional printer also includes an optical device configured to project a pattern of light through the transparent bottom. The optical device includes a light source configured to provide light at a light source output and a light integrator configured to provide divergent light at a light integrator output responsive to the light at the light source output. The optical device also includes projection optics configured to project projection output light at an optics output through the transparent bottom responsive to a modulated light at the optics input and a spatial light modulator configured to provide the modulated light responsive to the divergent light.

Abstract: An apparatus includes a focusing lens, a SLM optically coupled to the focusing lens and comprising micromirrors on a surface of the SLM, where the focusing lens is tilted at an incident angle relative to the surface of the SLM, an incident light beam is illuminated on the SLM at the incident angle, and the incident angle is greater by an offset angle than twice a tilt angle of the micromirrors with respect to the surface of the SLM. The apparatus also include an actuator optically coupled to the SLM, and projection optics optically coupled to the actuator.

Abstract: A system includes at least one laser configured to produce laser light and an optical element configured to produce shaped light responsive to receiving the laser light. The system also includes an optical phase modulator (OPM) optically coupled to the optical element, the OPM configured to modulate the shaped light to produce modulated light, where the optical element is configured to reduce a point spread function of the modulated light in a far field.

Abstract: A system includes: a phosphor configured to receive first light having a first color, to produce second light having a second color responsive to the first light, and to transmit at least a first portion of the first light; a color wheel comprising a first colored segment configured to transmit light having a third color and a second colored segment configured to transmit light having a fourth color; a light tunnel optically coupled between the phosphor and the color wheel configured to transmit combined light including least a portion of the first light and the second light; wherein the first segment is configured to transmit the third color as first transmitted light and the second segment to transmit light of the fourth color as second transmitted light; and a spatial light modulator configured to modulate the first transmitted light and the second transmitted light.

Abstract: An apparatus includes a phase light modulator (PLM) configured to produce background image illumination including background image light and zero-order light, a first lens array including first lenses optically coupled to the PLM and configured to project the background image light, a second lens array optically coupled to the first lens array and including second lenses configured to project the background image light, an optical tunnel extending between the first lens array and the second lens array, optically coupled to the PLM and configured to project a zero-order light, an embedded lens in the second lens array optically coupled to the optical tunnel and configured to focus the zero-order light from the optical tunnel, and focusing optics optically coupled to the second lens array and the embedded lens and configured to focus the background image light and the zero-order light onto a background image plane of a spatial light modulator.

Abstract: An apparatus for high dynamic range (HDR) modulation includes one or more lasers configured to transmit respective beams of laser light with a single color mode and a PLM optically coupled to the one or more lasers. The PLM is configured to modulate the laser light to produce a first modulated light. The apparatus also includes a phosphor optically coupled to the PLM and configured to receive at least a first portion of the first modulated light from the PLM and to emit a phosphor light with multiple color modes. At least one spatial light modulator (SLM) is also optically coupled to the phosphor and configured to modulate the multiple color modes in the phosphor light and the single color mode to project a second modulated light.

Abstract: Described examples a three-dimensional printer includes a vat having a transparent bottom, the vat configured to contain a photo-polymerizing resin and a lift plate movably positioned within the vat. The three-dimensional printer also includes an optical device configured to project a pattern of light through the transparent bottom. The optical device includes a light source configured to provide light at a light source output and a light integrator configured to provide divergent light at a light integrator output responsive to the light at the light source output. The optical device also includes projection optics configured to project projection output light at an optics output through the transparent bottom responsive to a modulated light at the optics input and a spatial light modulator configured to provide the modulated light responsive to the divergent light.

Abstract: Described examples include an optical device, having a light source with a light source output and a light integrator having a light integrator input and a light integrator output, the light integrator input optically coupled to the light source output, and the light integrator configured to provide divergent light at the light integrator output responsive to the light at the light source output. The optical device also has projection optics with an optics input and an optics output, the projection optics configured to project output light at the optics output responsive to modulated light at the optics input, in which a focal point of the optics input matches a divergence of the modulated light and a spatial light modulator optically coupled between the light integrator output and the optics input, the spatial light modulator configured to provide the modulated light responsive to the divergent light.

Abstract: Described examples include a device having a prism cube having a first side and a second side opposite the first side, the prism cube configured to: receive light comprising a first color light and a second color light, direct the first color light to the first side of the prism cube, and direct the second color light to the second side of the prism cube.

Abstract: A display device includes laser light sources configured to emit respective light beams at respective wavelengths for respective color modes, a PLM configured to reflect and scroll the light beams on a projection surface, and lenses configured to project the light beams from the laser light sources onto respective nonoverlapping areas on the PLM.

Abstract: A system includes: a phosphor configured to receive first light having a first color, to produce second light having a second color responsive to the first light, and to transmit at least a first portion of the first light; a color wheel comprising a first colored segment configured to transmit light having a third color and a second colored segment configured to transmit light having a fourth color; a light tunnel optically coupled between the phosphor and the color wheel configured to transmit combined light including least a portion of the first light and the second light; wherein the first segment is configured to transmit the third color as first transmitted light and the second segment to transmit light of the fourth color as second transmitted light; and a spatial light modulator configured to modulate the first transmitted light and the second transmitted light.

Abstract: Described examples include a beam spreader having a first beam splitter arranged to receive light from a light source, the first beam splitter arranged to pass a first portion of the light in a first direction and reflect a second portion of the light; a second beam splitter arranged to receive the second portion of the light and reflect a third portion of the light in a second direction parallel to the first direction and arranged to pass a fourth portion of the light; and a mirror arranged to receive the fourth portion of the light and reflect the fourth portion of the light in a third direction parallel to the first direction, wherein the third portion and the fourth portion of the light reflected from the mirror is separated from the first portion of the light in the spreading direction.

Abstract: Described examples include a projection system having a light source. The projection system also has a light integrator having an output face, the light integrator configured to receive an output of the light source, wherein a length of the light integrator is less than at least one diametric measurement of the output face of the light integrator. The projection system also has a spatial light modulator and focusing optics configured to receive a light output of the light integrator and configured to focus the light output of the light integrator onto the spatial light modulator. The projection system also has projection optics configured to project modulated light from the spatial light modulator.

Abstract: Described examples include a device having a prism cube having a first side and a second side opposite the first side, the prism cube configured to: receive light comprising a first color light and a second color light, direct the first color light to the first side of the prism cube, and direct the second color light to the second side of the prism cube.

Abstract: A method includes determining a first location, within a first viewing window, of a first eye of a user based on image data from an image sensor. The first viewing window corresponds to a first projector of a plurality of projectors. The method further includes determining a second location, within a second viewing window, of a second eye of the user based on the image data. The second viewing window corresponds to a second projector of the plurality of projectors. The method further includes initiating projection, via the first projector, of a first image depicting a first view of a three-dimensional scene. The first image is selected based on the first location. The method further includes initiating projection, via the second projector, of a second image depicting a second view of the three-dimensional scene. The second image is selected based on the second location.

Abstract: An apparatus includes an image sensor, a linear actuator, a projector coupled to the linear actuator, and a controller coupled to the image sensor and to the linear actuator. The controller is configured to determine a location of an eye of a user based on image data from the image sensor. The controller is further configured to activate the linear actuator to drive the projector to a position associated with projecting to the eye at the location. The controller is further configured to initiate projection, via the projector, of an image depicting a view of a three-dimensional scene, the image selected based on the location.

Abstract: An example device includes a screen, a first light source configured to emit a first light at a first angle during a first time period and a second light source configured to emit a second light at a second angle during a second time period. The second angle is different than the first angle. The second time period is different than the first time period. The device includes a spatial light modulator configured to provide a first view of digital content based on the first angle of the first light emitted during the first time period and a second view of the digital content based on the second angle of the second light emitted during the second time period and projection optics configured to project the first view and the second view for presentation via the screen.

Abstract: Described examples include a projection system having projection optics with a projection optics axis tilted from an axis perpendicular to an image target, the projection optics configured to project an image. The projection system also having an image source, the image source configured to provide the image, the image source having an offset from the projection optics axis, a plane of the image source having an angle from perpendicular to the projection optics axis such that a projected image from the image source projected by the projection optics is focused onto the image target along an extent of the projected image.