In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.

In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.

A vehicle window pane, includes, in this sequence, a first glass pane, one or a plurality of polymer layers, a PDLC layer, including a polymer matrix in which liquid crystal droplets are embedded, wherein an electrically conductive layer is arranged in each case on both sides of the PDLC layer, or an SPD layer, including a polymer matrix in which suspension droplets are embedded, in which light-polarizing particles are suspended, wherein an electrically conductive layer is arranged in each case on both sides of the SPD layer, one or a plurality of polymer layers, and a second glass pane, wherein, in the case of the PDLC layer, the liquid crystal droplets or, in the case of the SPD layer, the suspension droplets have an average size of more than 2 μm. The vehicle window pane can be switched between a transparent state and a turbid or opaque state.

An optoelectronic component including a waveguide, the waveguide comprising an optically active region (OAR), the OAR having an upper and a lower surface; a lower doped region, wherein the lower doped region is located at and/or adjacent to at least a portion of a lower surface of the OAR, and extends laterally outwards from the OAR in a first direction; an upper doped region, wherein the upper doped region is located at and/or adjacent to at least a portion of an upper surface of the OAR, and extends laterally outwards from the OAR in a second direction; and an intrinsic region located between the lower doped region and the upper doped region.

Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.

Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.

A projector assembly having a projecting device and a display screen with a film. The display screen is changeable from between opaque and transparent and the projecting device selectively rear projects an image onto the film such that the image is visible to a user generally from the front side of the screen. When the projector is off or the projection of images is otherwise stopped under predetermined conditions, the screen becomes transparent to provide the user a clear view through the display screen. When the projector is off power is simultaneously applied to the film which becomes transparent. A control device coordinates the application of power with the image projection, such that when the projected image is removed the screen becomes clear to see through the display screen, and when the projected image returns the screen becomes opaque for viewing the image.

A see-through dimming panel includes first and second transparent substrate layers and suspended-particle-device (SPD) layer therebetween. A first transparent conductor layer is between the first transparent substrate layer and the SPD layer, and a second transparent conductor layer is between the second transparent substrate layer and the SPD layer. A first electrode is electrically coupled to the first transparent conductor layer. Second and third electrodes are electrically coupled to opposite ends of the second transparent conductor layer. An electric potential difference applied between the first and second electrodes controls a transmittance level of the SPD layer. An electric potential difference applied between the second and third electrodes, which results in a transverse electric field, controls a speed at which the transmittance level of the SPD layer decreases when the electric potential difference applied between the first and second electrodes controls is decreased.

A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.

A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.