Abstract: A near-eye display device includes an image source, a waveguide, and a controller. The waveguide is configured to propagate light received the image source to a user of the near-eye display device, and includes a holographic grating comprising a plurality of angularly multiplexed holograms. The controller is configured to control display of an image via the image source.

Abstract: A method of detecting eye location for a head-mounted display system includes directing positioning light to an eye of a user and detecting the positioning light reflected from the eye of the user. The method further includes determining a distance between the eye and a near-eye optic of the head-mounted display system based on attributes of the detected positioning light, and providing feedback for adjusting the distance between the eye and the near-eye optic.

Abstract: An example see-through head-mounted display system includes a freeform prism and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also include an imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.

Abstract: Embodiments related near-eye display devices having angularly multiplexed holograms are disclosed. One disclosed embodiment provides a near-eye display device including an image source, a waveguide, and a controller. The waveguide is configured to propagate light received the image source to a user of the near-eye display device, and includes a holographic grating comprising a plurality of angularly multiplexed holograms. The controller is configured to control display of an image via the image source.

Abstract: Near-eye display devices having angularly multiplexed holograms are disclosed. One example includes an image source, a waveguide, and a controller. The waveguide is configured to propagate light received the image source to a user of the near-eye display device, and includes a holographic grating including a plurality of angularly multiplexed holograms. The controller is configured to control display of an image via the image source.

Abstract: An optical light engine includes a pair of lenticular microlenslet arrays (MLAs) located on each side of a polarization converter. Non-polarized light from a source in the engine is focused by the first MLA onto cells of the polarization converter which converts the light to a common state of polarization to increase efficiency and improve contrast in the system. A half wave retarder is included on the polarization converter to change the polarization of any light that is reflected from downstream optical components to match that of the forward propagating light. The second MLA, which includes a relatively large number of microlenslet elements, collects the light from the polarization converter and homogenizes the light to be highly uniform when received at a downstream imaging panel in the light engine such as a liquid crystal on silicon (LCOS) panel.

Abstract: A method for cleaning a bargun dispenser, the method including providing a cleaning assembly containing a reservoir, a pump and fluid connection tubes; connecting the cleaning assembly to the bargun dispenser by connecting the concentrate inlet line to the reservoir in place of the source of concentrate with one of the fluid connection tubes and connecting the water inlet line to the reservoir in place of the water supply with one of the fluid connection tubes; filling the reservoir with a cleaning solution; activating the pump of the reservoir; and activating the bargun handle buttons for opening the pump outlet lines until the reservoir is empty.

Abstract: An example see-through head-mounted display system includes a freeform prism and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also include an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.

Abstract: The invention concerns an assembly (1) for engaging and activating a bargun (2), the bargun having a handle (21) with at least one button (22, 23) on its upper surface (24) and a nozzle (25) perpendicular to the handle, the assembly comprising:—a draining body (11) presenting:. an opening (111) for receiving the bargun nozzle,. an outlet (112) configured for being connected to the drain,—a bargun holding bracket (12) attached to the draining body, said bracket defining a space (s) for holding the handle and the free end (121) of said bracket being configured for activating the at least one button on the upper surface of the handle when the handle is slid in said space.

Abstract: A binocular display includes a waveguide. A convex spherical mount has a fixed position relative to the waveguide. A light engine includes a concave spherical mount that adjustably mates with the convex spherical mount.

Abstract: An optical light engine includes a pair of lenticular microlenslet arrays (MLAs) located on each side of a polarization converter. Non-polarized light from a source in the engine is focused by the first MLA onto cells of the polarization converter which converts the light to a common state of polarization to increase efficiency and improve contrast in the system. A half wave retarder is included on the polarization converter to change the polarization of any light that is reflected from downstream optical components to match that of the forward propagating light. The second MLA, which includes a relatively large number of microlenslet elements, collects the light from the polarization converter and homogenizes the light to be highly uniform when received at a downstream imaging panel in the light engine such as a liquid crystal on silicon (LCOS) panel.

Abstract: A near-eye display system includes an image former and a waveguide. The image former is configured to form a display image and to release the display image through a first exit pupil. The waveguide presents a back surface that faces the wearer's eye, and a front surface opposite the back surface. The waveguide is substantially transparent to external imagery received normal to the front surface, and is configured to receive the display image from the image former and to release the display image through a second exit pupil, which is larger than the first exit pupil.

Abstract: Dispensing support for use with an associated brick-type package, the brick-type package presenting a parallelepiped shape for its bottom and side panels and a gable top panel with a pour spout attached thereto. The dispensing support comprises a parallelepiped sleeve, the sleeve being divided in two parts attached together by a hinge, so that the sleeve can be opened and the associated brick-type package can be inserted inside. The dispensing support presents an upwardly projecting spout extending from the top wall of the parallelepiped sleeve, the spout being off-center on the top wall of the sleeve so as to engage the pour spout at the gable top panel of the brick-type package when the package is introduced in the dispensing support with its gable top compressed.

Abstract: The invention concerns an assembly (1) for engaging and activating a bargun (2), the bargun having a handle (21) with at least one button (22, 23) on its upper surface (24) and a nozzle (25) perpendicular to the handle, the assembly comprising:—a draining body (11) presenting:. an opening (111) for receiving the bargun nozzle,. an outlet (112) configured for being connected to the drain,—a bargun holding bracket (12) attached to the draining body, said bracket defining a space (s) for holding the handle and the free end (121) of said bracket being configured for activating the at least one button on the upper surface of the handle when the handle is slid in said space.

Abstract: A method for cleaning a bargun dispenser, the clean in place method comprising the following steps—providing a cleaning assembly comprising: a reservoir (4), a pump (5) and fluid connection tubes (t1, t2, t3, t4),—connecting the clean in place assembly to the bargun dispenser by: • connecting the concentrate inlet line (i1, i2, i3) to the reservoir in place of the source of concentrate with one of the fluid connection tubes (t1, t2),—connecting the water inlet line (iw) to the reservoir in place of the water supply with one of the fluid connection tubes (t3),—filling the reservoir with a cleaning solution (S),—activating the pump of the reservoir, and—activating the bargun handle buttons for opening the pump outlet lines until the reservoir is empty

Abstract: Embodiments are disclosed for adjusting alignment of a near-eye optic of a see-through head-mounted display system. In one embodiment, a method of detecting eye location for a head-mounted display system includes directing positioning light to an eye of a user and detecting the positioning light reflected from the eye of the user. The method further includes determining a distance between the eye and a near-eye optic of the head-mounted display system based on attributes of the detected positioning light, and providing feedback for adjusting the distance between the eye and the near-eye optic.

Abstract: Embodiments are disclosed herein that relate to aligning a near-eye display of a near-eye display device with an eye of a user. For example, one disclosed embodiment provides, on a near-eye display device, a method comprising receiving an image of an eye from a camera via a reverse display optical path, detecting a location of the eye in the image, and determining a relative position of the eye with regard to a target viewing position of the near-eye display. The method further comprises determining an adjustment to make to the near-eye display device to align the location of the eye with the target viewing position.

Abstract: Embodiments are disclosed for a see-through head-mounted display system. In one embodiment, the see-through head-mounted display system comprises a freeform prism, and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also comprise an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.

Abstract: Embodiments are disclosed for a see-through head-mounted display system. In one embodiment, the see-through head-mounted display system comprises a freeform prism, and a display device configured to emit display light through the freeform prism to an eye of a user. The see-through head-mounted display system may also comprise an imaging device having an entrance pupil positioned at a back focal plane of the freeform prism, the imaging device configured to receive gaze-detection light reflected from the eye and directed through the freeform prism.

Abstract: A binocular display includes a waveguide. A convex spherical mount has a fixed position relative to the waveguide. A light engine includes a concave spherical mount that adjustably mates with the convex spherical mount.