Abstract: An eye tracker comprises a light source; a detector; and first and second waveguides. The first waveguide comprises an input coupler for coupling source light into a waveguide path and a first grating for coupling light out of the waveguide path onto an eye. The second waveguide comprises a second grating for coupling light reflected from the eye into a waveguide path and an output coupler for coupling light out of the waveguide path onto the detector. The second grating is optically configured for imaging the eye onto the detector.

Abstract: Systems and methods for fabricating optical elements in accordance with various embodiments of the invention are illustrated. One embodiment includes a method for fabricating an optical element, the method including providing a first optical substrate, depositing a first layer of a first optical recording material onto the first optical substrate, applying an optical exposure process to the first layer to form a first optical structure, temporarily erasing the first optical structure, depositing a second layer of a second optical recording material, and applying an optical exposure process to the second layer to form a second optical structure, wherein the optical exposure process includes using at least one light beam traversing the first layer.

Abstract: An apparatus for displaying an image, including: an input image node configured to provide at least a first and a second image modulated lights; and a holographic waveguide device configured to propagate the at least one of the first and second image modulated lights in at least a first direction. The holographic waveguide device includes: at least a first and second interspersed multiplicities of grating elements disposed in at least one layer, the first and second grating elements having respectively a first and a second prescriptions. The first and second multiplicity of grating elements are configured to deflect respectively the first and second image modulated lights out of the at least one layer into respectively a first and a second multiplicities of output rays forming respectively a first and second FOV tiles.

Abstract: Holographic volume gratings in waveguide cells can be recorded using many different methods and systems in accordance with various embodiments of the invention. One embodiment includes a holographic recording system including at least one laser source configured to emit recording beams and a movable platform configured to move between a first position and a second position, wherein when the movable platform is in the first position, the at least one laser source is configured to emit a first set of one or more recording beams toward a first set of one or more stations and when the movable platform is in the second position, the at least one laser source is configured to emit a second set of one or more recording beams toward a second set of one or more stations.

Abstract: Improvements to gratings for use in waveguides and methods of producing them are described herein. Deep surface relief gratings (SRGs) may offer many advantages over conventional SRGs and Bragg gratings, an important one being a higher S-diffraction efficiency. In one embodiment, deep SRGs can be implemented as polymer surface relief gratings or evacuated Bragg gratings (EBGs). EBGs can be formed by first recording a holographic polymer dispersed liquid crystal (HPDLC) grating. Removing the liquid crystal from the cured grating provides a polymer surface relief grating. Polymer surface relief gratings have many applications including for use in waveguide-based displays.

Abstract: One embodiment provides an apparatus for displaying an image comprising: a first optical substrate comprising at least one waveguide layer configured to propagate light in a first direction, wherein the at least one waveguide layer of the first optical substrate comprises at least one grating lamina configured to extract the light from the first substrate along the first direction; and a second optical substrate comprising at least one waveguide layer configured to propagate the light in a second direction, wherein the at least one waveguide layer of the second optical substrate comprises at least one grating lamina configured to extract light from the second substrate along the second direction; wherein the at least one grating lamina of at least one of the first and second optical substrates comprises an SBG in a passive mode.

Abstract: A method for producing holograms with a multiplicity of holographic prescriptions from a single master is provided. A multiplicity of holographic substrates each containing a first hologram is stacked on a second holographic recording medium substrate. The first hologram is designed to diffract light from a first direction into a second direction. When expose to illumination from the first direction zero order and diffracted light from each first hologram interfere in the second holographic recording medium substrate forming a second hologram. The second hologram is then copied into a third holographic recording medium substrate to provide the final copy hologram.

Abstract: A transparent wearable data display having a source of collimated light, a deflector for deflecting the collimated light into a scanned beam, and a first of switchable grating elements sandwiched between first and second parallel transparent substrates, which together functioning as a first light guide. A first coupling is provided for directing the scanned beam into a first total internal reflection (TIR) light path of the first light guide along the first array column. The grating elements having diffracting and non-diffracting states, in their diffracting state deflecting light out of said light guide. The grating elements are switchable into their diffracting states one group of elements at a time.

Abstract: A system for automatically dynamically forming a virtual microphone coverage map using a combined microphone array in a shared 3D space is provided. The system includes a combined microphone array comprising a plurality of microphones and a system processor communicating with the combined microphone array. The microphones in the combined microphone array are arranged along various microphone arrangements. The system processor is configured to perform operations including obtaining locations of the microphones within the combined microphone array throughout the shared 3D space, generating coverage zone dimensions based on the locations of the microphones, and populating the coverage zone dimensions with virtual microphones.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface, with audio location, includes structure and/or function whereby at least one processor: (i) receives a touch input from a touch device; (ii) establishes a touch-speech time window; (iii) receives a speech input from a speech device; (iii) determines whether the speech input is present in a global dictionary; (iv) determines a location of a sound source from the speech device; (v) determines whether the touch input and the location of the speech input are both within a same region; (vi) if the speech input is in the dictionary, determines whether the speech input has been received within the window; and (vii) if the speech input has been received within the window, and the touch input and the speech input are both within the same region, activates an action corresponding to both the touch input and the speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface, with audio location, includes structure and/or function whereby at least one processor: (i) receives a touch input from a touch device; (ii) establishes a touch-speech time window; (iii) receives a speech input from a speech device; (iii) determines whether the speech input is present in a global dictionary; (iv) determines a location of a sound source from the speech device; (v) determines whether the touch input and the location of the speech input are both within a same region; (vi) if the speech input is in the dictionary, determines whether the speech input has been received within the window; and (vii) if the speech input has been received within the window, and the touch input and the speech input are both within the same region, activates an action corresponding to both the touch input and the speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface, with audio location, includes structure and/or function whereby at least one processor: (i) receives a touch input from a touch device; (ii) establishes a touch-speech time window; (iii) receives a speech input from a speech device; (iii) determines whether the speech input is present in a global dictionary; (iv) determines a location of a sound source from the speech device; (v) determines whether the touch input and the location of the speech input are both within a same region; (vi) if the speech input is in the dictionary, determines whether the speech input has been received within the window; and (vii) if the speech input has been received within the window, and the touch input and the speech input are both within the same region, activates an action corresponding to both the touch input and the speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface includes structure and/or function whereby at least one processor: (i) receives an input from a touch sensitive input device; (ii) establishes a touch speech time window with respect to the received touch input; (iv) receives an input from a speech input device; (v) determines whether the received speech input is present in a global dictionary; (vi) if the received speech input is present in the global dictionary, determines whether the received speech input has been received within the established touch speech time window; and (vii) if the received speech input has been received within the established touch speech time window, activate an action corresponding to both the received touch input and the received speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface includes structure and/or function whereby at least one processor: (i) receives an input from a touch sensitive input device; (ii) establishes a touch speech time window with respect to the received touch input; (iv) receives an input from a speech input device; (v) determines whether the received speech input is present in a global dictionary; (vi) if the received speech input is present in the global dictionary, determines whether the received speech input has been received within the established touch speech time window; and (vii) if the received speech input has been received within the established touch speech time window, activate an action corresponding to both the received touch input and the received speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface, with audio location, includes structure and/or function whereby at least one processor: (i) receives a touch input from a touch device; (ii) establishes a touch-speech time window; (iii) receives a speech input from a speech device; (iii) determines whether the speech input is present in a global dictionary; (iv) determines a location of a sound source from the speech device; (v) determines whether the touch input and the location of the speech input are both within a same region; (vi) if the speech input is in the dictionary, determines whether the speech input has been received within the window; and (vii) if the speech input has been received within the window, and the touch input and the speech input are both within the same region, activates an action corresponding to both the touch input and the speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface includes structure and/or function whereby at least one processor: (i) receives an input from a touch sensitive input device; (ii) establishes a touch speech time window with respect to the received touch input; (iv) receives an input from a speech input device; (v) determines whether the received speech input is present in a global dictionary; (vi) if the received speech input is present in the global dictionary, determines whether the received speech input has been received within the established touch speech time window; and (vii) if the received speech input has been received within the established touch speech time window, activate an action corresponding to both the received touch input and the received speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface, with audio location, includes structure and/or function whereby at least one processor: (i) receives a touch input from a touch device; (ii) establishes a touch-speech time window; (iii) receives a speech input from a speech device; (iii) determines whether the speech input is present in a global dictionary; (iv) determines a location of a sound source from the speech device; (v) determines whether the touch input and the location of the speech input are both within a same region; (vi) if the speech input is in the dictionary, determines whether the speech input has been received within the window; and (vii) if the speech input has been received within the window, and the touch input and the speech input are both within the same region, activates an action corresponding to both the touch input and the speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface includes structure and/or function whereby at least one processor: (i) receives an input from a touch sensitive input device; (ii) establishes a touch speech time window with respect to the received touch input; (iv) receives an input from a speech input device; (v) determines whether the received speech input is present in a global dictionary; (vi) if the received speech input is present in the global dictionary, determines whether the received speech input has been received within the established touch speech time window; and (vii) if the received speech input has been received within the established touch speech time window, activate an action corresponding to both the received touch input and the received speech input.

Abstract: Method, apparatus, and computer-readable media for touch and speech interface, with audio location, includes structure and/or function whereby at least one processor: (i) receives a touch input from a touch device; (ii) establishes a touch-speech time window; (iii) receives a speech input from a speech device; (iii) determines whether the speech input is present in a global dictionary; (iv) determines a location of a sound source from the speech device; (v) determines whether the touch input and the location of the speech input are both within a same region; (vi) if the speech input is in the dictionary, determines whether the speech input has been received within the window; and (vii) if the speech input has been received within the window, and the touch input and the speech input are both within the same region, activates an action corresponding to both the touch input and the speech input.

Abstract: An image capture method comprises generating a synchronization signal based on modulated illumination; and synchronizing image frame capture of at least one image sensor using the synchronization signal with the illumination timing of an active pointer within a region of interest in the field of view of the at least one image sensor.