Abstract: An optical arrangement to transmit an image from an image plane to a user's eye. The arrangement providing a folded optical transmission path comprising a collimating element, having a first optical element with a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface. The collimating element to receive light forming the image from an image source and collimate and output the light. The optically powered surfaces having a plurality of interfaces along the folded optical path. A refractive index change at each interface is predetermined to control the direction of light passing through each interface. One surface of each of the first and the second optical elements being adjacent to one another. The adjacent surfaces having dissimilar shapes and each defining an angle with a respective other surface of the relevant optical element at opposing ends of the adjacent surfaces.

Abstract: A folded optical arrangement to transmit an image from an image plane to a user's eye through a folded optical transmission path including a collimating element having a first optical element with optically powered surfaces and a second optical element with at least one optically powered surface to receive light from an image source and to collimate and output the light. The first optically powered surfaces and the second optically powered surface to define multiple interfaces along the folded optical path. A refractive index change at each interface controls a direction of light passing through each interface. One surface of the first optical element and the second optical element are adjacent to one another. The adjacent surfaces have dissimilar shapes and each defines an angle with a respective other surface of the relevant optical element at opposing ends of the adjacent surfaces. The opposing angles are not equal.

Abstract: A folded optical arrangement for use in a look-through display to transmit an image from an image plane to a user's eye, the arrangement providing a folded optical transmission path and comprising: an optical system having a first optical element comprising a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface, the optical system configured to receive light forming the image from an image source, and to focus the light to have an apparent optical focus between a predetermined distance and optical infinity and output the light; wherein the first plurality of optically powered surfaces and the at least one optically powered surface of the second optical element are arranged to define a plurality of interfaces along the folded optical path and wherein a refractive index change at each interface is predetermined to control the direction of light passing through the or each interface; and wherein one surface of the first optical element and

Abstract: A folded optical arrangement for use in a view-through display to transmit an image from an image source to a user's eye, the arrangement providing a folded optical transmission path and comprising: an optical system having a first optical element comprising a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface, the optical system configured to receive light forming the image from an image source, and to present a virtual image of the image source to the user with an apparent focus between a predetermined distance and optical infinity; wherein the first plurality of optically powered surfaces and the at least one optically powered surface of the second optical element are arranged to define a plurality of interfaces along the folded optical path and wherein a refractive index change at each interface is predetermined to control the direction of light passing through the or each interface; and wherein one surface of the first optical ele

Abstract: A modular wearable optics device including: at least one wearable support element; one or more active optical elements adapted in use to display an image to a user; one of a plurality of bridging elements selected to position or orientate the one or more active optical elements in a predetermined location based on one or more anthropometric characteristics of the user.

Abstract: In various embodiments, a waveguide assembly includes first and second waveguide slabs. The first waveguide slab is to receive image-bearing light and enlarge a pupil size of the light parallel to a first axis. The first waveguide slab includes a first input-coupling device to couple image-bearing light into the first waveguide slab under total internal reflection (TIR), and a first out-coupling region to decouple image-bearing light out of the first waveguide slab by reflection. The second waveguide slab is to couple at least a portion of the out-coupled image-bearing light from the first waveguide slab into the second waveguide slab and enlarge the pupil size parallel to a second axis, which is substantially orthogonal to the first axis. The second waveguide slab includes a diffractive in-coupling region and a transmissive diffractive out-coupling region, through which a user can view real world imagery and the out-coupled image-bearing light simultaneously.

Abstract: Various embodiments of the disclosed subject-matter include a wearable optics device including an adjustment mechanism supportable on a frame adapted to be worn by a user; one or more waveguides in a pre-aligned position relative to the adjustment mechanism; and an optical element moveably attached to the adjustment mechanism to enable the optical element to be moved based on a user preference and to provide an exit pupil for the wearable optics device In various embodiments, the waveguide output is oversized relative to the input region of the optical element. Other devices and apparatuses are also disclosed.

Abstract: In various embodiments, an optical system to present an image to an eye of a user is disclosed. The system comprises a waveguide configured to output collimated light towards an optically powered element comprising at least one holographic component to generate optical power. The optically powered element is configured to receive the output collimated light from the waveguide and direct the received light towards the eye of the user and impart an angular offset on the directed light such that the directed light forms a virtual image plane.

Abstract: A method is provided for adjusting a luminance profile of an image displayed on a look-through display to a user. The method comprises: determining a field of view of the user based on a spatial configuration of the user's head. Determining one or more lighting conditions in the field of view. Adjusting the luminance profile for the image based on the field of view, wherein, as a result of the adjusted luminance profile, the image is reconciled with the field of view.

Abstract: A folded optical arrangement for use in a view-through display to transmit an image from an image source to a user's eye, the arrangement providing a folded optical transmission path and comprising: an optical system having a first optical element comprising a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface, the optical system configured to receive light forming the image from an image source, and to present a virtual image of the image source to the user with an apparent focus between a predetermined distance and optical infinity; wherein the first plurality of optically powered surfaces and the at least one optically powered surface of the second optical element are arranged to define a plurality of interfaces along the folded optical path and wherein a refractive index change at each interface is predetermined to control the direction of light passing through the or each interface; and wherein one surface of the first optical ele

Abstract: A method is provided for adjusting a luminance profile of an image displayed on a look-through display to a user. The method comprises: determining a field of view of the user based on a spatial configuration of the user's head. Determining one or more lighting conditions in the field of view. Adjusting the luminance profile for the image based on the field of view, wherein, as a result of the adjusted luminance profile, the image is reconciled with the field of view.

Abstract: A folded optical arrangement for use in a display, the display to transmit an image from an image plane to a user's eye, the arrangement providing a folded optical transmission path and comprising: a collimating element having a first optical element comprising a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surfaces, the collimating element configured to receive light forming the image from an image source, and to collimate and output the light, wherein the first plurality of optically powered surfaces and the at least one optically powered surface of the second optical element are arranged to define a plurality of interfaces along the folded optical path and wherein a refractive index change at each interface is predetermined to control the direction of light passing through the or each interface, and wherein one surface of the first optical element and one surface of the second optical element are adjacent to one another and the adjace

Abstract: A folded optical arrangement for use in a look-through display to transmit an image from an image plane to a user's eye, the arrangement providing a folded optical transmission path and comprising: an optical system having a first optical element comprising a first plurality of optically powered surfaces; and a second optical element comprising at least one optically powered surface, the optical system configured to receive light forming the image from an image source, and to focus the light to have an apparent optical focus between a predetermined distance and optical infinity and output the light; wherein the first plurality of optically powered surfaces and the at least one optically powered surface of the second optical element are arranged to define a plurality of interfaces along the folded optical path and wherein a refractive index change at each interface is predetermined to control the direction of light passing through the or each interface; and wherein one surface of the first optical element and

Abstract: There is provided an integrity monitor for a display system, the display system comprising an image source and a display. The integrity monitor comprises a controller configured to analyse sensed characteristics at one or more predetermined positions in an image area of the display system and to relate the sensed characteristics to predetermined characteristics of a stimulus, when injected into the system, thereby to determine the presence of a fault in the system. The sensed characteristics may be sensed optically or non-optically. The stimulus may be optical or non-optical.

Abstract: A modular wearable optics device including: at least one wearable support element; one or more active optical elements adapted in use to display an image to a user; one of a plurality of bridging elements selected to position or orientate the one or more active optical elements in a predetermined location based on one or more anthropometric characteristics of the user.

Abstract: There is provided an integrity monitor for a display system, the display system comprising an image source and a display. The integrity monitor comprises a controller configured to analyse sensed characteristics at one or more predetermined positions in an image area of the display system and to relate the sensed characteristics to predetermined characteristics of a stimulus, when injected into the system, thereby to determine the presence of a fault in the system. The sensed characteristics may be sensed optically or non-optically. The stimulus may be optical or non-optical.