Abstract: In embodiments of a flexible display extendable assembly, an extendable assembly includes a slideable display guide integrated in a first housing part of an extendable electronic device. The extendable electronic device includes a flexible display that slide-engages into the first housing part of the extendable electronic device. The extendable assembly includes an extendable mechanism that is coupled in a second housing part of the extendable electronic device and to the slideable display guide. The first and second housing parts of the extendable electronic device slide-engage relative to each other. The extendable mechanism is implemented to extend as the first and second housing parts slide apart relative to each other, and also to retract as the first and second housing parts slide together relative to each other.

Abstract: A projectile that includes strakes mounted about the perimeter of the midsection of the projectile and a pusher plate assembly mounted about the aft of the projectile so that a sub-caliber projectile may be fired from a larger caliber gun. The pusher plate assembly forms a seal with the bore at the aft end of the projectile. The strakes maintain the center line position of the projectile within the bore. The pusher plate assembly further designed to fragment upon exiting the bore while the strakes remain with the projectile to enhance aerodynamic qualities of the projectile in flight.

Abstract: In embodiments of a hinge electrical interconnection guide, a portable device includes a first housing integrated with a display device, and a second housing movably coupled to the first housing. A hinge assembly includes a hinge link to couple hinge mechanisms that are movably operable to open and close the first and second housings of the portable device relative to each other. An electrical interconnection guide is integrated with the hinge link and designed to route an electrical interconnection in a first configuration between the first and second housings of the device when closed relative to each other. The electrical interconnection guide is also designed to route the electrical interconnection in a second configuration between the first and second housings of the device when open relative to each other.

Abstract: The technology provides embodiments for recalibration of outward facing cameras supported by a see-through, head mounted, mixed reality display system having a flexible portion between see-through displays for the eyes. Each outward facing camera has a fixed spatial relationship with a respective or corresponding see-through display positioned to be seen through by a respective eye. For front facing cameras, the fixed spatial relationship allows a predetermined mapping between positions on an image sensor of each camera and positions on the respective display. The mapping may be used to register a position of a virtual object to a position of a real object. A change in a first flexible spatial relationship between the outward facing cameras can be automatically detected. A second spatial relationship between the cameras is determined. A registration of a virtual object to a real object may be updated based on the second spatial relationship.

Abstract: In embodiments of a flexible display extendable assembly, an extendable assembly includes a slideable display guide integrated in a first housing part of an extendable electronic device. The extendable electronic device includes a flexible display that slide-engages into the first housing part of the extendable electronic device. The extendable assembly includes an extendable mechanism that is coupled in a second housing part of the extendable electronic device and to the slideable display guide. The first and second housing parts of the extendable electronic device slide-engage relative to each other. The extendable mechanism is implemented to extend as the first and second housing parts slide apart relative to each other, and also to retract as the first and second housing parts slide together relative to each other.

Abstract: The technology provides embodiments for recalibration of outward facing cameras supported by a see-through, head mounted, mixed reality display system having a flexible portion between see-through displays for the eyes. Each outward facing camera has a fixed spatial relationship with a respective or corresponding see-through display positioned to be seen through by a respective eye. For front facing cameras, the fixed spatial relationship allows a predetermined mapping between positions on an image sensor of each camera and positions on the respective display. The mapping may be used to register a position of a virtual object to a position of a real object. A change in a first flexible spatial relationship between the outward facing cameras can be automatically detected. A second spatial relationship between the cameras is determined. A registration of a virtual object to a real object may be updated based on the second spatial relationship.

Abstract: The technology provides embodiments for recalibration of outward facing cameras supported by a see-through, head mounted, mixed reality display system having a flexible portion between see-through displays for the eyes. Each outward facing camera has a fixed spatial relationship with a respective or corresponding see-through display positioned to be seen through by a respective eye. For front facing cameras, the fixed spatial relationship allows a predetermined mapping between positions on an image sensor of each camera and positions on the respective display. The mapping may be used to register a position of a virtual object to a position of a real object. A change in a first flexible spatial relationship between the outward facing cameras can be automatically detected. A second spatial relationship between the cameras is determined. A registration of a virtual object to a real object may be updated based on the second spatial relationship.

Abstract: In embodiments of a flexible display extendible assembly, an extendible assembly includes a slideable display guide integrated in a first housing part of an extendible electronic device. The extendible electronic device includes a flexible display that slide-engages into the first housing part of the extendible electronic device. The extendible assembly includes an extendible mechanism that is coupled in a second housing part of the extendible electronic device and to the slideable display guide. The first and second housing parts of the extendible electronic device slide-engage relative to each other. The extendible mechanism is implemented to extend as the first and second housing parts slide apart relative to each other, and also to retract as the first and second housing parts slide together relative to each other.

Abstract: In embodiments of an expandable mobile device, the device includes first and second housing parts that slide-engage relative to each other to extend and retract the device. The expandable mobile device includes a flexible display that extends from an interior of the expandable mobile device as the second housing part slides out from the first housing part. The flexible display also retracts into the interior of the expandable mobile device as the second housing part slides into the first housing part. Rollers are integrated in the first housing part and bend the flexible display around a fixed radius to position a first section of the flexible display approximately parallel to a second section of the flexible display in a retracted position of the expandable mobile device.

Abstract: A projectile that includes strakes mounted about the perimeter of the midsection of the projectile and a pusher plate assembly mounted about the aft of the projectile so that a sub-caliber projectile may be fired from a larger caliber gun. The pusher plate assembly forms a seal with the bore at the aft end of the projectile. The strakes maintain the center line position of the projectile within the bore. The pusher plate assembly further designed to fragment upon exiting the bore while the strakes remain with the projectile to enhance aerodynamic qualities of the projectile in flight.

Abstract: In embodiments of a double hinge torsion bar, a portable device includes a first housing integrated with a display device, and a second housing movably coupled to the first housing. Double hinges attach to the first and second housings of the portable device, and the double hinges are operable to open and close the first and second housings relative to each other. A torsion bar movably couples the double hinges to open and close at approximately a same timing rate, which can prevent the double hinges from binding when the first and second housings are opened and closed relative to each other.

Abstract: AN HMD is disclosed including a pair of temple arms which wrap around a portion of a user's head. The temple arms provide long axis (front to back) compression, and compression against sides of the user's head. Such a distribution of forces prevents resting of the HMD primarily on the nose, ears or the top of the head, and allows the HMD to be worn in a way that is comfortable and non-intrusive.

Abstract: In embodiments of a double hinge torsion bar, a portable device includes a first housing integrated with a display device, and a second housing movably coupled to the first housing. Double hinges attach to the first and second housings of the portable device, and the double hinges are operable to open and close the first and second housings relative to each other. A torsion bar movably couples the double hinges to open and close at approximately a same timing rate, which can prevent the double hinges from binding when the first and second housings are opened and closed relative to each other.

Abstract: In embodiments of a flexible display overcenter assembly, an overcenter assembly includes a first flange integrated in a first housing part of a foldable electronic device. The device includes a flexible display, and the first housing part is integrated with a first section of the flexible display. The overcenter assembly also includes a second flange integrated in a second housing part of the foldable electronic device, and the second housing part is integrated with a second section of the flexible display. The first and second flanges are implemented to fold and form a radius that supports the flexible display in a closed position of the device. Hinge assemblies are implemented to movably couple the first and second housing parts of the foldable electronic device, and the flexible display bends through a pivot axis of the hinge assemblies when the first and second housing parts of the device are closed.

Abstract: In embodiments of an expandable mobile device, the device includes first and second housing parts that slide-engage relative to each other to extend and retract the device. The expandable mobile device includes a flexible display that extends from an interior of the expandable mobile device as the second housing part slides out from the first housing part. The flexible display also retracts into the interior of the expandable mobile device as the second housing part slides into the first housing part. Rollers are integrated in the first housing part and bend the flexible display around a fixed radius to position a first section of the flexible display approximately parallel to a second section of the flexible display in a retracted position of the expandable mobile device.

Abstract: In embodiments of a double hinge torsion bar, a portable device includes a first housing integrated with a display device, and a second housing movably coupled to the first housing. Double hinges attach to the first and second housings of the portable device, and the double hinges are operable to open and close the first and second housings relative to each other. A torsion bar movably couples the double hinges to open and close at approximately a same timing rate, which can prevent the double hinges from binding when the first and second housings are opened and closed relative to each other.

Abstract: In embodiments of an extendable connecting link, a first link section attaches in a first housing part of a device and a second link section attaches in a second housing part of the device. The first and second link sections interlock and slide-engage relative to each other. An interconnection channel routes an electrical interconnection between the first housing part and the second housing part of the device, where the interconnection channel is formed when the first and second link sections are slide-engaged. The first and second link sections also slide relative to each other to increase or decrease a length of the extendable connecting link.

Abstract: A system is disclosed for maintaining the spacing between waveguides in an optical element of a near eye display. Spacing is maintained with spacer elements mounted between adjacent waveguides in the optical element.

Abstract: In embodiments of an expandable mobile device, the device includes first and second housing parts that slide-engage relative to each other to extend and retract the device. The expandable mobile device includes a flexible display that extends from an interior of the expandable mobile device as the second housing part slides out from the first housing part. The flexible display also retracts into the interior of the expandable mobile device as the second housing part slides into the first housing part. Rollers are integrated in the first housing part and bend the flexible display around a fixed radius to position a first section of the flexible display approximately parallel to a second section of the flexible display in a retracted position of the expandable mobile device.

Abstract: In embodiments of double hinge axial cams, a portable device includes a first housing integrated with a display device, and a second housing movably coupled to the first housing. The first housing is operable to open and close relative to the second housing, and the first and second housings can be rotated from a closed position at approximately zero degrees (0°) to an open position at approximately one-hundred and eighty degrees (180°), as well as rotated through approximately three-hundred and sixty degrees (360°). Double hinges are operable to movably couple the first housing and the second housing. The double hinges include axial cams that apply a holding torque in the open position that resists the first and second housings closing.