Abstract: A head worn display (HWD) includes a head attachment region, an internal display and a controller. The internal display is viewable by a user and includes variable transparency areas. The internal display is arranged to display at least a portion of an external region external to the HWD. The controller is configured to control the variable transparency areas to block view of a region of the external region and to control the internal display to overlay information in a region of the internal display corresponding to the region of the external region which is blocked.

Abstract: A display system includes an interface unit, a head worn display in wireless communication with the interface unit, and a first tracker sensor remote from a head of a user and configured to wirelessly sense a head pose and provide first head tracking data to the interface unit. The interface unit is remote from the head worn display. The display system also includes a second tracker sensor associated with the head of the user and configured to provide second head tracking data associated with the head pose to the head worn display. The interface unit is configured to receive the second head tracking data from the head worn display via at least one wireless link and provide video information for display on the head worn display via the at least one wireless link.

Abstract: A first waveguide of the HUD includes a first input coupler and a first output coupler. The first input coupler is configured to receive first light in a first bandwidth and provide the first light to the first output coupler. The first output coupler is configured to provide the first light in a first field of view. The first input coupler is configured to receive second light in a second bandwidth and provide the second light to the first output coupler. A second waveguide of the HUD includes a second input coupler and a second output coupler. The second input coupler is configured to receive third light in the first bandwidth and provide the third light to the second output coupler. The second output coupler is configured to provide the third light in the second field of view.

Abstract: An optical device includes an electrochromic layer, a plurality of electronic drivers, and a controller. The electrochromic layer includes a plurality of electrochromic regions separated from each other. The plurality of electronic drivers are arranged to electrically connect with and drive respective of the electrochromic regions. The controller is configured to control the plurality of electronic drivers to individually address each of the plurality of electrochromic regions to selectively drive some of the plurality of electrochromic regions to change light transmission of the selectively driven plurality of electrochromic regions.

Abstract: A display system includes an interface unit, a head worn display in wireless communication with the interface unit, and a first tracker sensor remote from a head of a user and configured to wirelessly sense a head pose and provide first head tracking data to the interface unit. The interface unit is remote from the head worn display. The display system also includes a second tracker sensor associated with the head of the user and configured to provide second head tracking data associated with the head pose to the head worn display. The interface unit is configured to receive the second head tracking data from the head worn display via at least one wireless link and provide video information for display on the head worn display via the at least one wireless link.

Abstract: A light-modulated photodiode-based monitor for detecting a control signal of a display is disclosed. The monitor includes an emitter configured to emit a control signal, a polarizer configured to linearly polarize the pulsed signal, one or more fold mirrors configured to reflect the pulsed signal from the emitter onto a test portion and/or reflect the pulsed signal that has reflected off of the test portion. The monitor further includes an analyzer configured to block or transmit the polarized pulse signal reflected from at least one of the fold mirror or the test portion, and a detector configured to receive the pulsed signal transmitted from the analyzer and convert the pulsed signal into an electrical signal. The monitor further includes a controller that includes one or more processors and is configured to receive the electrical signal, filter and rectify the electrical signal, and determine a functional state of the display.

Abstract: An optical display system includes a first display, a plurality of electronic drivers, a controller, and a combiner. Light from a scene is combined with image light from the first display, and the combined light presented to an observer. The combiner includes an electrochromic layer comprising one or more electrochromic regions separated from each other. The electronic drivers are arranged to electrically connect with and drive respective of the electrochromic regions. The controller is configured to control the plurality of electronic drivers to individually address each of the electrochromic regions to selectively drive some of the electrochromic regions to change light transmission of the selectively driven electrochromic regions.

Abstract: A head worn display device is disclosed. Each of two display assemblies includes a first waveguide with a field of view and a second waveguide with a field of view, where the fields of view are overlapped to generate a combined field of view for each of the display assemblies. Each of the display assemblies further includes a first collimator and a second collimator, where each collimator is configured to direct illumination through the waveguide stack along a single axis, and where each collimator is rotated a select angle to offset the combined field of view to merge collimator pupils and generate a seamless total field of view for each of the display assemblies. Each of the display assemblies are rotated a select angle to offset the respective total fields of view along the single axis and generate a seamless wide field of view for the head worn display device.

Abstract: A head up display can use a catadioptric collimating system. The head up display includes an image source. The head up display also includes a collimating mirror, and a polarizing beam splitter. The light from the image source enters the beam splitter and is reflected toward the collimating mirror. The light striking the collimating mirror is reflected through the beam splitter toward a combiner. A field lens can include a diffractive surface. A corrector lens can be disposed after the beam splitter.

Abstract: A head up display includes a light pipe and a waveguide combiner. The light pipe is configured to expand a pupil in a first direction and includes an input grating and an output put grating. The light pipe also includes four elongated surfaces, and the input grating and the output grating are provided in one or more planes parallel to two of the elongated surfaces. The waveguide combiner is configured to expand the pupil in a second direction perpendicular to the first direction. The first light pipe is disposed at an angle with respect to a waveguide combiner.

Abstract: A display system includes a light pipe including elongated surfaces. The light pipe is configured to expand the image in a first direction through one of the elongated surfaces. The display also includes a waveguide including an output grating, a first surface, a second surface, and a side surface. The first surface and the second surface have a larger area than the side surface, the output grating being configured to provide the image expanded in a second direction. The second direction is different than the first direction. The image enters the waveguide from the one of the elongated surfaces.

Abstract: A head up display can be used in compact environments. The head up display includes a combiner system including at least one light pipe and a waveguide. The at least one light pipe includes a turning grating or mirror array for providing light into the waveguide from the light pipe. An additional light pipe can also be provided. The combiner system can be head worn or stand-alone and can provide dual axis pupil expansion.

Abstract: A display system includes a light pipe including elongated surfaces. The light pipe is configured to expand the image in a first direction through one of the elongated surfaces. The display also includes a waveguide including an output grating, a first surface, a second surface, and a side surface. The first surface and the second surface have a larger area than the side surface, the output grating being configured to provide the image expanded in a second direction. The second direction is different than the first direction. The image enters the waveguide from the one of the elongated surfaces.

Abstract: A head worn display (HWD) includes a head attachment region, an internal display and a controller. The internal display is viewable by a user and includes variable transparency areas. The internal display is arranged to display at least a portion of an external region external to the HWD. The controller is configured to control the variable transparency areas to block view of a region of the external region and to control the internal display to overlay information in a region of the internal display corresponding to the region of the external region which is blocked.

Abstract: A head up display can use a catadioptric collimating system. The head up display includes an image source. The head up display also includes a collimating mirror, and a polarizing beam splitter. The light from the image source enters the beam splitter and is reflected toward the collimating mirror. The light striking the collimating mirror is reflected through the beam splitter toward a combiner. A field lens can include a diffractive surface. A corrector lens can be disposed after the beam splitter.

Abstract: A system and method for a head up display (HUD) can mitigate glare. The head up display can include a waveguide combiner including an input grating and an output grating and a glare mitigator disposed to prevent glare through the output grating from reaching an eye box. The glare mitigator can be a shade, a diffuser, a dimming element, or other device for mitigating glare. The glare mitigator can be an active or passive glare mitigator.

Abstract: A head up display includes a light pipe and a waveguide combiner. The light pipe is configured to expand a pupil in a first direction and includes an input grating and an output put grating. The light pipe also includes four elongated surfaces, and the input grating and the output grating are provided in one or more planes parallel to two of the elongated surfaces. The waveguide combiner is configured to expand the pupil in a second direction perpendicular to the first direction. The first light pipe is disposed at an angle with respect to a waveguide combiner.

Abstract: A head wearable display device, a method, and a system. The head wearable display device may include a visor portion implemented as a pupil-expanding waveguide, a processor, an image illumination source communicatively coupled to the processor and configured to output optical signals, an optical pathway, and column injectors implemented in and along the optical pathway. Each of the column injectors may be associated with a pixel column. Each of the column injectors may be configured to be in a pass-through state or a deflect state. When a given column injector is in the pass-through state, the given column injector may allow optical signals to pass through the given column injector. When a particular column injector is in the deflect state, the particular column injector may be configured to deflect the optical signals into the visor portion causing a column of pixels to display in the visor portion.

Abstract: A head up display includes a light pipe and a waveguide combiner. The light pipe is configured to expand a pupil in a first direction and includes an input grating and an output put grating. The light pipe also includes four elongated surfaces, and the input grating and the output grating are provided in one or more planes parallel to two of the elongated surfaces. The waveguide combiner is configured to expand the pupil in a second direction perpendicular to the first direction. The first light pipe is disposed at an angle with respect to a waveguide combiner.

Abstract: A head up display can be used in compact environments. The head up display includes a combiner system including at least one light pipe and a waveguide. The at least one light pipe includes a turning grating or mirror array for providing light into the waveguide from the light pipe. An additional light pipe can also be provided. The combiner system can be headworn or stand-alone and can provide dual axis pupil expansion.