Abstract: An optical combiner includes a lightguide having an input region, an output region, a relay region intermediate between the input region and the output region, and one or more stress raisers positioned to define a line of weakness in the lightguide. The line of weakness is intermediate between the input region and the output region and extends across the relay region. An in-coupler is disposed at the input region to receive an incident light with a field of view and couple the incident light into the lightguide. An out-coupler is disposed at the output region to couple light out of the lightguide. The optical combiner may be integrated with one or more lenses for use as a combiner lens in a wearable heads-up display.

Abstract: An optical combiner lens includes a lightguide having an input zone at which light enters the lightguide, an output zone from which light exits the lightguide, and a propagation zone between the input zone and the output zone that provides a propagation path for light from the input zone to the output zone. A lens is stacked over the lightguide. A seal engages the lightguide and the lens. The seal is positioned relative to the lightguide such that a portion of the seal is stacked over a portion of the propagation zone. A reflective optical coating is interposed between the portion of the propagation zone and the portion of the seal.

Abstract: A combiner lens includes a first lens, a lightguide, and a second lens. The first lens includes a first lens body and a flange integrally formed with the first lens body. The first lens body and flange define a main cavity. The flange has a first joint surface. The lightguide is disposed at least partially in the main cavity. The second lens includes a second lens body positioned in stack with the lightguide and the first lens body. The second lens has a second joint surface in opposing relation to the first joint surface. The second lens is attached to the first lens by a joint formed between the first joint surface and the second joint surface.

Abstract: An optical combiner includes a lightguide having an input region, an output region, a relay region intermediate between the input region and the output region, and one or more stress raisers positioned to define a line of weakness in the lightguide. The line of weakness is intermediate between the input region and the output region and extends across the relay region. An in-coupler is disposed at the input region to receive an incident light with a field of view and couple the incident light into the lightguide. An out-coupler is disposed at the output region to couple light out of the lightguide. The optical combiner may be integrated with one or more lenses for use as a combiner lens in a wearable heads-up display.

Abstract: An optical combiner lens for a wearable heads-up display includes a first lens, a second lens, and a lightguide disposed between the first lens and the second lens to form a stack. A first medium gap is defined within the stack and between the first lens and the lightguide, and a second medium gap is defined within the stack and between the lightguide and the second lens. An in-coupler is positioned to receive light into the lightguide. An out-coupler is positioned to output light from the lightguide.

Abstract: A combiner lens includes a first lens, a lightguide, and a second lens. The first lens includes a first lens body and a flange integrally formed with the first lens body. The first lens body and flange define a main cavity. The flange has a first joint surface. The lightguide is disposed at least partially in the main cavity. The second lens includes a second lens body positioned in stack with the lightguide and the first lens body. The second lens has a second joint surface in opposing relation to the first joint surface. The second lens is attached to the first lens by a joint formed between the first joint surface and the second joint surface.

Abstract: An optical combiner lens includes a lightguide having an input zone at which light enters the lightguide, an output zone from which light exits the lightguide, and a propagation zone between the input zone and the output zone that provides a propagation path for light from the input zone to the output zone. A lens is stacked over the lightguide. A seal engages the lightguide and the lens. The seal is positioned relative to the lightguide such that a portion of the seal is stacked over a portion of the propagation zone. A reflective optical coating is interposed between the portion of the propagation zone and the portion of the seal.

Abstract: An optical transmission hinge includes a first hinge body and a second hinge body. A pivot joint is formed between the first hinge body and the second hinge body. The pivot joint defines a pivot axis. A first optical element and a second optical element are positioned on the pivot axis, and the second optical element is spaced apart from the first optical element. An intermediary optical path that is coincident with the pivot axis extends between the first optical element and the second optical element. Temples and wearable heads-up displays including the optical transmission hinge are disclosed.

Abstract: A light emitting diode (LED) module and display for hiding physical gaps between modules is provided. An LED module comprises: a board including at least one edge; and an array of LEDs at the board, the array comprising: first LEDs and second LEDs, smaller than the first LEDs, the second LEDs located along the at least one edge of the board, the first and second LEDs all being at a common pitch distance, adjacent sides of adjacent first LEDs separated by a first distance, and the second LEDs being at a second distance from the at least one edge of the board, the second distance smaller than the first distance. The modules may be incorporated into an LED display.

Abstract: An optical combiner lens for a wearable heads-up display includes a first lens, a second lens, and a lightguide disposed between the first lens and the second lens to form a stack. A first medium gap is defined within the stack and between the first lens and the lightguide, and a second medium gap is defined within the stack and between the lightguide and the second lens. An in-coupler is positioned to receive light into the lightguide. An out-coupler is positioned to output light from the lightguide.

Abstract: A light emitting diode (LED) module and display for hiding physical gaps between modules is provided. An LED module comprises: a board including at least one edge; and an array of LEDs at the board, the array comprising: first LEDs and second LEDs, smaller than the first LEDs, the second LEDs located along the at least one edge of the board, the first and second LEDs all being at a common pitch distance, adjacent sides of adjacent first LEDs separated by a first distance, and the second LEDs being at a second distance from the at least one edge of the board, the second distance smaller than the first distance. The modules may be incorporated into an LED display.

Abstract: According to the present specification there is provided a system for mounting a plurality of display units, which system comprises a display locating component that is substantially two-dimensional. The display locating component defines a surface having a profile, and the display locating component has a plurality of mounting positions each at a predetermined position on the display locating component, each mounting position configured to receive at least one of the display units. The system also comprises a plurality of adjustable mounts configured to: support the display locating component, and adjust the profile of the display locating component to within a given profile tolerance.

Abstract: An apparatus for removing a display from a tiled display arrangement is provided. The apparatus includes a body, a handle coupled to a first side of the body, and an interface material coupled to the second side of the body. The interface material is configured to temporarily bond to a front surface of the display for removing the display from the tiled display arrangement. The interface material is further configured to selectively de-bond from the front surface of the display. In some implementations, the interface material may be selected to result in a bond with high tensile strength and shear strength, as well as low peel strength.

Abstract: There is provided an an apparatus for reducing coherence of a laser beam, which apparatus comprises a rectangular chamber having a first, second, and third walls each comprising a reflective inner surface, and a fourth wall comprising a beam splitter. The fourth wall is configured to transmit a portion of the laser beam into the chamber to form an input beam incident upon the first wall. The first wall is configured to reflect the input beam onto the second wall, which is configured to reflect the input beam onto the third wall, which is configured to reflect the input beam onto the fourth wall. The fourth wall is configured to reflect a portion of the input beam to form a further input beam incident upon the first wall and to transmit another portion of the input beam out of the chamber to form an output laser beam.

Abstract: An LED display system having an LED module for reducing dark line defects. LED modules arranged adjacently in an LED display system form seams therebetween. An LED module for reducing dark line defects includes a set of imaging pixels for generating an image and a set of illuminating pixels for generating seam illumination through the seams. Seam illumination is directed through the seams directly or by a reflector integral with or attachable to the LED module or to a coupling assembly of the LED display system. The illuminating pixels may be controlled to track colour or intensity of the image being generated by imaging pixels.

Abstract: A system for producing an output light beam of a given spectrum is provided. The system comprises: a light source; a separator configured to separate an input light beam, from the light source, into a retained light beam directed along a first path and an excess light beam directed along a second path, based on wavelength of the input light beam; an optical power shifter positioned to intercept the excess light beam, the optical power shifter configured to convert the excess light beam into a power-shifted light beam comprising at least some wavelengths and/or power red-shifted relative to the excess light beam; and a combiner positioned to intercept both the retained light beam and the power-shifted light beam, the combiner configured to combine the retained light beam and the power-shifted light beam onto a common path to produce the output light beam.

Abstract: An LED display system having an LED module for reducing dark line defects. LED modules arranged adjacently in an LED display system form seams therebetween. An LED module for reducing dark line defects includes a set of imaging pixels for generating an image and a set of illuminating pixels for generating seam illumination through the seams. Seam illumination is directed through the seams directly or by a reflector integral with or attachable to the LED module or to a coupling assembly of the LED display system. The illuminating pixels may be controlled to track colour or intensity of the image being generated by imaging pixels.

Abstract: A light emitting wheel with eccentricity for dispelling a thermal boundary layer a light emitting material is provided, including a device comprising: a light emitting material; a cooling plate configured to cool the light emitting material, the cooling plate comprising a center-of-mass that is different from a center-of-rotation of the cooling plate; and, a hub located at the center-of-rotation of the cooling plate.

Abstract: An apparatus for removing a display from a tiled display arrangement is provided. The apparatus includes a body, a handle coupled to a first side of the body, and an interface material coupled to the second side of the body. The interface material is configured to temporarily bond to a front surface of the display for removing the display from the tiled display arrangement. The interface material is further configured to selectively de-bond from the front surface of the display. In some implementations, the interface material may be selected to result in a bond with high tensile strength and shear strength, as well as low peel strength.

Abstract: There is provided an apparatus for wavelength conversion, comprising a wavelength converter, a first reflector, a second reflector, a third reflector, and a first lens. The first reflector has a curvature and is configured to reflect a plurality of input light beams onto the second reflector. The second reflector is configured to reflect the input light onto the third reflector. The first lens is disposed between the wavelength converter and the third reflector. The third reflector is configured to reflect the input light through the first lens and onto the wavelength converter, which is then excited to emit an emitted light. The first lens is configured to receive at least a portion of the emitted light, reduce its divergence, and at least partially transmit it to form an output light propagating towards the third reflector, which is configured to at least partially transmit the output light.