Abstract: A virtual image generation system for use by an end user comprises a projection subsystem configured for generating a collimated light beam, and a display configured emitting light rays in response to the collimated light beam to display a pixel of an image frame to the end user. The pixel has a location encoded with angles of the emitted light rays. The virtual image generation system further comprises a sensing assembly configured for sensing at least one parameter indicative of at least one of the emitted light ray angles, and a control subsystem configured for generating image data defining a location of the pixel, and controlling an angle of the light beam relative to the display based on the defined location of the pixel and the sensed parameter(s).

Abstract: Techniques disclosed herein relate to eye illumination for eye tracking in a near-eye display system. One example of an eye illumination system includes a substrate transparent to visible light and infrared light and configured to be placed in front of an eye of a user, and a shortwave-pass filter on a first surface of the substrate. The shortwave-pass filter includes regions configured to transmit visible light and reflect infrared light in ambient light, and a plurality of windows configured to transmit both visible light and infrared light in the ambient light.

Abstract: A system for making a holographic medium for use in generating light patterns for eye tracking includes a light source configured to provide light and a beam splitter configured to separate the light into a first portion of the light and a second portion of the light that is spatially separated from the first portion of the light. The system also includes a first set of optical elements configured to transmit the first portion of the light for providing a first wide-field beam onto an optically recordable medium and a plurality of optical fibers configured to receive the second portion of the light and project a plurality of separate light patterns onto the optically recordable medium for forming the holographic medium.

Abstract: An eyepiece for an augmented reality display system. The eyepiece can include a waveguide substrate. The waveguide substrate can include an input coupler grating (ICG), an orthogonal pupil expander (OPE) grating, a spreader grating, and an exit pupil expander (EPE) grating. The ICG can couple at least one input light beam into at least a first guided light beam that propagates inside the waveguide substrate. The OPE grating can divide the first guided light beam into a plurality of parallel, spaced-apart light beams. The spreader grating can receive the light beams from the OPE grating and spread their distribution. The spreader grating can include diffractive features oriented at approximately 90° to diffractive features of the OPE grating. The EPE grating can re-direct the light beams from the first OPE grating and the first spreader grating such that they exit the waveguide substrate.

Abstract: A system for making a holographic medium for use in generating light patterns for eye tracking includes a light source configured to provide light and a beam splitter configured to separate the light into a first portion of the light and a second portion of the light that is spatially separated from the first portion of the light. The system also includes a first set of optical elements configured to transmit the first portion of the light for providing a first wide-field beam onto an optically recordable medium, a second set of optical elements configured to transmit the second portion of the light for providing a second wide-field beam, and a plurality of parabolic reflectors optically coupled with the second set of optical elements and configured to receive the second wide-field beam and project a plurality of separate light patterns onto the optically recordable medium for forming the holographic medium.

Abstract: A system predicts future positions or vergence depth of the user's eyes and generates gaze contingent content, such as for a head-mounted display (HMD), based on the predicted positions or vergence depth. The system includes an eye tracking controller that creates eye tracking information defining positions of a first eye and a second eye of a user over time. The eye tracking information is input to a neural network model that outputs the predicted positions or vergence depth. The predicted positions or vergence depth is then used to render the gaze contingent content, or to change other configurations of the HMD. Latency between the detection of user eye movement and the output of corresponding content is reduced to provide a more immersive real-time user experience.

Abstract: A method for providing augmented reality contents to a wearer using a head-mounted display device that includes an eye tracking sensor, a light projector, a beam steerer, and a combiner includes determining, with the eye tracking sensor, a position of a pupil of an eye of the wearer. The method also includes projecting, with the light projector, light for rendering images based at least on the augmented reality contents, and changing, with the beam steerer, a direction of the light from the light projector based on the position of the pupil. The light from the beam steerer is directed toward the combiner and the light from the beam steerer and light from an outside of the head-mounted display device are combined, by the combiner, to provide an overlap of a rendered image and a real image that corresponds to the light from the outside of the head-mounted display device.

Abstract: The disclosed eye-tracking systems may include a visible light display having visible light pixels, at least one infrared pixel positioned within bounds of the visible light display, and an infrared sensor positioned and configured to detect infrared light originating from the at least one infrared pixel and reflected from an eye of the user. Related head-mounted display systems and methods for eye tracking are also disclosed.

Abstract: An eyepiece waveguide for an augmented reality. The eyepiece waveguide can include a transparent substrate with an input coupler region, a first orthogonal pupil expander (OPE) region, and an exit pupil expander (EPE) region. The input coupler region can couple an input light beam that is externally incident on the input coupler region into at least a first guided light beam that propagates inside the substrate. The first OPE region can divide the first guided beam into a plurality of replicated, spaced-apart beams. The EPE region can re-direct the replicated beams from the first OPE region such that they exit the substrate. The EPE region can have an amount of optical power.

Abstract: Apparatus and methods for forming and printing hollow bodies from amorphous materials to form three-dimensional objects are provided. Apparatus provide a hollow body forming and printing machine, and methods for determining a desired amount of impact deformation for the hollow spheres, including calculating specific characteristics of the hollow spheres and the amorphous material, deriving a target viscosity range, adjusting the apparatus to satisfy the target viscosity range, and using the apparatus to form a plurality of hollow spheres with controlled deformation.

Abstract: A coordinated greeting card and envelope are provided. The greeting card includes a theme and the envelope contains a window that cooperates with and supplements the theme. A message and/or artwork is provided on panels of the greeting card to define the theme. The envelope may also include indicia cooperating with the window and the theme (e.g., message or artwork) of the greeting card. The envelope may also include indicia to show areas to include a recipient or sender's address. A user may see a portion of the theme of the greeting card through the window of the envelope. The envelope may also have a message to guide the user to orient the greeting card placed in the envelope such that the message or artwork on the greeting card is displayed upright in the window on the envelope. The window may also include a thin and transparent plastic film to protect the contents of the envelope.

Abstract: A new and distinct cultivar of Caladium plant named ‘RFL THAI OF13-1055’, characterized by its tall and upright to somewhat mounding plant habit; dense and bushy appearance; vigorous growth habit and rapid growth rate; fancy-type leaves that are dark green and reddish brown in color with random deep pink-colored spots and flecks and dark purple-colored venation and petioles that are dark brown to almost black in color.

Abstract: A new and distinct cultivar of Caladium plant named ‘RUF 1522-3’, characterized by its compact and mounding plant habit; dense and bushy appearance; vigorous growth habit and rapid growth rate; lance-type leaves that are dark red in color with dark green-colored margins; and petioles that are tannish pink in color with greenish brown-colored stripes, streaks and tessellations.

Abstract: A new and distinct cultivar of Caladium plant named ‘LWH OF13-332’, characterized by its intermediate height; mounding plant habit; dense and bushy appearance; vigorous growth habit and rapid growth rate; lance-type leaves that are light red to variable shades of pink in color with random green and orange-colored spots with dark bronze red-colored venation and margins; and petioles that are black or black with tannish pink stripes in color.

Abstract: A new and distinct cultivar of Caladium plant named ‘ARN BRZ OF14-40’, characterized by its tall and upright to somewhat mounding plant habit; dense and bushy appearance; vigorous growth habit and moderate growth rate; fancy-type leaves that are pale green or pale greenish yellow in color and flushed with reddish bronze, with reddish bronze-colored margins, and midvein and primary veins that are greenish white tinged with reddish bronze in color surrounded by white areas; occasional dark green-colored flecks and/or blotches may be present; and petioles that are almost black in color with greenish or tan-colored stripes.

Abstract: A new and distinct cultivar of Caladium plant named ‘CRM STR OF15-691’, characterized by its short and upright to mounding plant habit; dense and bushy appearance; vigorous growth habit and rapid growth rate; strap/lance-type leaves that are greenish white to lime green in color and variably flushed with dark pink, pale green-colored venation and variably tinged with greyish red, reddish brown or dark red, dark red-colored leaf petiole junction, and thin green-colored margins with dark red-colored edges; and petioles that are almost black in color with pale tannish pink-colored stripes or tannish pink and with brownish black-colored stippling and streaks.

Abstract: A new and distinct cultivar of Caladium plant named ‘WQN BL V OF 13-452’, characterized by its intermediate and upright to mounding plant habit; dense and bushy appearance; vigorous growth habit and moderate growth rate; fancy-type leaves that are greenish white in color variably or entirely flushed with purplish red with dark greyish purple-colored venation and narrow dark green-colored margins; and petioles that are almost black in color.

Abstract: A new and distinct cultivar of Alocasia plant named ‘AP091520’, characterized by its tall and upright plant habit that becomes outwardly arching with development; vigorous growth habit and rapid growth rate; glossy green-colored and undulate leaves that are initially held vertically becoming more horizontal with development; and green-colored leaf petioles that are initially erect and arch outwardly with development.

Abstract: A new and distinct cultivar of Caladium plant named ‘RIB OF15-809 RD’, characterized by its compact and upright to outwardly arching plant habit; dense and bushy appearance; vigorous growth habit and rapid growth rate; upright, narrow and undulate lance-type leaves that are dark red in color with dark green-colored margins; petioles that are tannish pink in color with brown-colored stippling, streaks and tessellations; and good garden performance and tolerance to high light conditions.