Abstract: A method including forming a substrate to form a template which includes areas of high relief and areas of low relief; and forming a high refractive index diffraction grating in the template by adding high refractive index material to the template to form a continuous low relief surface. The high refractive index material fills the areas of low relief and covers the areas of high relief of the template to form a high refractive index diffraction grating. The high refractive index diffraction grating includes the high refractive index material configured to have a low relief side corresponding to the continuous low relief surface and configured by the template to have a periodic side including areas of high relief and areas of low relief which periodically alternate in the first direction with the first periodicity and are interconnected by the high refractive index material.

Abstract: An apparatus for providing gaze tracking in a near-eye display. Certain examples provide an apparatus including a light modulator configured to receive light of a first range of wavelengths and generate an image beam therefrom. The light modulator is further configured to receive light of a second range of wavelengths and generate a probe beam therefrom. The apparatus also includes one or more light guides including one or more in-coupling element areas, and one or more out-coupling element areas. The one or more in-coupling element areas are configured to receive and in-couple the image beam and the probe beam into the one or more light guides. The one or more out-coupling element areas are configured to out-couple, from the one or more light guides: the image beam to a user's eye for user viewing, and the probe beam to the user's eye for detection of reflection therefrom.

Abstract: An apparatus comprising: including a light source; a pixel control element; and an input transmission polarizer configured to: polarize incident light from the light source into transmitted first and second light portions, wherein the first light portion has a first polarization and the second light portion has a second polarization and wherein the first and second polarizations are orthogonal; to provide the first light portion as input to the pixel control element; and to output the second light portion to provide the second light portion for illumination.

Abstract: An apparatus, method and computer program wherein the apparatus includes: processing circuitry; and memory circuitry including computer program code, the memory circuitry and the computer program code configured to, with the processing circuitry, enable the apparatus to perform; detecting whether or not a user is viewing an external display area or an internal display area; controlling an image source to provide images for the internal display area in response to detecting that a user is viewing the internal display area: and controlling an image source to provide images for the external display area in response to detecting that a user is viewing the external display area.

Abstract: The invention relates to an imaging processing method comprising receiving (210) at least one input image, said at least one input image having been captured by at least one camera; receiving (220) at least one state parameter related to a user device, said user device comprising at least one display, said at least one display being at least partially transparent and operatively connected to said at least one camera. The at least one input image may be processed (230) based on the at least one received state parameter to produce at least one processed image. Alternatively or in addition, at least one image processing parameter indicative of the at least one received state parameter may be provided for processing (230) the at least one input image.

Abstract: An apparatus and method wherein the apparatus includes an image source; an exit pupil configured to be positioned proximate to an eye of a user to enable a user to view an image from the image source; and a plurality of grating areas between the image source and the exit pupil wherein the plurality of grating areas are configured to direct beams of light from the image source to the exit pupil; wherein the image source is configured to be moved relative to the plurality of grating areas to control the position of the exit pupil relative to the eye of the user.

Abstract: An apparatus including an internal optical projection element configured to project light internally towards an eye of a user of the apparatus; an external optical projection element configured to project light externally away from an eye of the user of the apparatus; and one or more optical engines configured to provide light to the internal optical projection element and the external optical projection element.

Abstract: A method comprising receiving visual identification information from a separate apparatus, identifying the separate apparatus based, at least in part, on camera visual information and the visual identification information, determining that the separate apparatus is perceivable through a see through display, and causing display of program interaction information on the see through display such that the program interaction information corresponds with at least part of the separate apparatus viewable through the see through display based, at least in part, on the identification of the separate apparatus is disclosed.

Abstract: A method comprising receiving visual identification information from a separate apparatus, identifying the separate apparatus based, at least in part, on camera visual information and the visual identification information, determining that the separate apparatus is perceivable through a see through display, and causing display of program interaction information on the see through display such that the program interaction information corresponds with at least part of the separate apparatus viewable through the see through display based, at least in part, on the identification of the separate apparatus is disclosed.

Abstract: Embodiments of the present invention relate to an apparatus, method, computer program and system for a near eye display to cause at least: displaying visual content on a near eye display; detecting an event; and adjusting, in response to detecting the event, a visual prominence of the displayed visual content for altering a viewer's immersion level in the displayed visual content.

Abstract: A method, apparatus, and computer program product are provided to facilitate performing focus correction of displayed information. In the context of a method, a focus distance of a user is determined. The method may also determine determining at least one focal point setting for one or more dynamic focus optical components of a display based on the focus distance. The method may also cause a configuring of the one or more dynamic focus optical components based on the at least one focal point setting to present a representation of data on the display.

Abstract: A method, apparatus, and computer program product are provided to facilitate determining representations of displayed information based on focus distance. In the context of a method, a focus distance of a user is determined. The method may also determine a representation of the data based on the focus distance. The method may also cause a presentation of the representation on a display.

Abstract: An eye tracker device (200) comprises a diffractive beam expander (207) to provide two substantially collimated illuminating light beams (B11, B12). The collimated light beams (B11, B12) provide two reflection spots (G1, G2) appearing in the image of the eye. The gaze direction (GZD) is calculated from the positions of the reflection spots (G1, G2) with respect to the pupil (P) of the eye (E1). The two illuminating beams (B11, B12) are provided by splitting an infrared laser beam (B4) into two in-coupled beams (B5, B6), which propagate in different directions in the substrate (7) of the beams expander. The in-coupled beams (B5, B6) are expanded and their light is subsequently coupled out of the substrate (7) by an out-coupling grating (230) to illuminate the eye (E1). The same substrate (7) may also be used to implement a virtual display device (100) for displaying virtual images to said eye (E1).

Abstract: An eye tracker device (200) comprises a diffractive beam expander (207) to provide two substantially collimated illuminating light beams (B11, B12). The collimated light beams (B11, B12) provide two reflection spots (G1, G2) appearing in the image of the eye. The gaze direction (GZD) is calculated from the positions of the reflection spots (G1, G2) with respect to the pupil (P) of the eye (E1). The two illuminating beams (B11, B12) are provided by splitting an infrared laser beam (B4) into two in-coupled beams (B5, B6), which propagate in different directions in the substrate (7) of the beams expander. The in-coupled beams (B5, B6) are expanded and their light is subsequently coupled out of the substrate (7) by an out-coupling grating (230) to illuminate the eye (E1). The same substrate (7) may also be used to implement a virtual display device (100) for displaying virtual images to said eye (E1).